diff --git a/Doc/library/idle.rst b/Doc/library/idle.rst
index 75b6fa3861b23d..0f94579f759bdd 100644
--- a/Doc/library/idle.rst
+++ b/Doc/library/idle.rst
@@ -252,6 +252,9 @@ View Last Restart
 Restart Shell
   Restart the shell to clean the environment.
 
+Clear and Restart
+  Restart the shell and clear the contents of the shell window.
+
 Previous History
   Cycle through earlier commands in history which match the current entry.
 
diff --git a/Lib/idlelib/README.txt b/Lib/idlelib/README.txt
index bc3d978f43f1ad..22224de031cd5a 100644
--- a/Lib/idlelib/README.txt
+++ b/Lib/idlelib/README.txt
@@ -162,6 +162,7 @@ Edit
 Shell  # pyshell
   View Last Restart    # pyshell.PyShell.view_restart_mark
   Restart Shell        # pyshell.PyShell.restart_shell
+  Clear and Restart    # pyshell.PyShell.clear_and_restart_shell
   Interrupt Execution  # pyshell.PyShell.cancel_callback
 
 Debug (Shell only)
diff --git a/Lib/idlelib/config-keys.def b/Lib/idlelib/config-keys.def
index f71269b5b49f46..3b6cc77326d48b 100644
--- a/Lib/idlelib/config-keys.def
+++ b/Lib/idlelib/config-keys.def
@@ -24,6 +24,7 @@ history-previous=<Alt-Key-p> <Meta-Key-p> <Alt-Key-P> <Meta-Key-P>
 interrupt-execution=<Control-Key-c> <Control-Key-C>
 view-restart=<Key-F6>
 restart-shell=<Control-Key-F6>
+clear-restart-shell=<Control-Key-F7>
 open-class-browser=<Alt-Key-c> <Meta-Key-c> <Alt-Key-C> <Meta-Key-C>
 open-module=<Alt-Key-m> <Meta-Key-m> <Alt-Key-M> <Meta-Key-M>
 open-new-window=<Control-Key-n> <Control-Key-N>
@@ -82,6 +83,7 @@ history-previous=<Alt-Key-p> <Meta-Key-p>
 interrupt-execution=<Control-Key-c>
 view-restart=<Key-F6>
 restart-shell=<Control-Key-F6>
+clear-restart-shell=<Control-Key-F7>
 open-class-browser=<Control-Key-x><Control-Key-b>
 open-module=<Control-Key-x><Control-Key-m>
 open-new-window=<Control-Key-x><Control-Key-n>
@@ -142,6 +144,7 @@ history-previous = <Alt-Key-p> <Meta-Key-p>
 interrupt-execution = <Control-Key-c>
 view-restart = <Key-F6>
 restart-shell = <Control-Key-F6>
+clear-restart-shell = <Control-Key-F7>
 open-class-browser = <Control-Key-b>
 open-module = <Control-Key-m>
 open-new-window = <Control-Key-n>
@@ -204,6 +207,7 @@ history-previous=<Control-Key-p>
 interrupt-execution=<Control-Key-c>
 view-restart=<Key-F6>
 restart-shell=<Control-Key-F6>
+clear-restart-shell=<Control-Key-F7>
 open-class-browser=<Command-Key-b>
 open-module=<Command-Key-m>
 open-new-window=<Command-Key-n>
@@ -263,6 +267,7 @@ comment-region = <Control-Key-3>
 redo = <Shift-Command-Key-Z>
 close-window = <Command-Key-w>
 restart-shell = <Control-Key-F6>
+clear-restart-shell = <Control-Key-F7>
 save-window-as-file = <Shift-Command-Key-S>
 close-all-windows = <Command-Key-q>
 view-restart = <Key-F6>
diff --git a/Lib/idlelib/config.py b/Lib/idlelib/config.py
index 04444a3bf20b30..6e66c018fc5798 100644
--- a/Lib/idlelib/config.py
+++ b/Lib/idlelib/config.py
@@ -614,6 +614,7 @@ def GetCoreKeys(self, keySetName=None):
             '<<interrupt-execution>>': ['<Control-c>'],
             '<<view-restart>>': ['<F6>'],
             '<<restart-shell>>': ['<Control-F6>'],
+            '<<clear-restart-shell>>': ['<Control-F7>'],
             '<<open-class-browser>>': ['<Alt-c>'],
             '<<open-module>>': ['<Alt-m>'],
             '<<open-new-window>>': ['<Control-n>'],
diff --git a/Lib/idlelib/help.html b/Lib/idlelib/help.html
index 81ce5100bb8ad5..05110b4bf3cb0d 100644
--- a/Lib/idlelib/help.html
+++ b/Lib/idlelib/help.html
@@ -285,6 +285,8 @@ <h3>Shell menu (Shell window only)<a class="headerlink" href="#shell-menu-shell-
 </dd>
 <dt>Restart Shell</dt><dd><p>Restart the shell to clean the environment.</p>
 </dd>
+<dt>Clear and Restart</dt><dd><p>Restart the shell and clear the contents of the shell window.</p>
+</dd>
 <dt>Previous History</dt><dd><p>Cycle through earlier commands in history which match the current entry.</p>
 </dd>
 <dt>Next History</dt><dd><p>Cycle through later commands in history which match the current entry.</p>
diff --git a/Lib/idlelib/mainmenu.py b/Lib/idlelib/mainmenu.py
index 74edce23483829..730579dd97dec0 100644
--- a/Lib/idlelib/mainmenu.py
+++ b/Lib/idlelib/mainmenu.py
@@ -82,6 +82,7 @@
  ('shell', [
    ('_View Last Restart', '<<view-restart>>'),
    ('_Restart Shell', '<<restart-shell>>'),
+   ('_Clear and Restart', '<<clear-restart-shell>>'),
    None,
    ('_Previous History', '<<history-previous>>'),
    ('_Next History', '<<history-next>>'),
diff --git a/Lib/idlelib/pyshell.py b/Lib/idlelib/pyshell.py
index 66ae0f7435daba..61b5a0b1a4738f 100755
--- a/Lib/idlelib/pyshell.py
+++ b/Lib/idlelib/pyshell.py
@@ -477,7 +477,7 @@ def start_subprocess(self):
         self.poll_subprocess()
         return self.rpcclt
 
-    def restart_subprocess(self, with_cwd=False, filename=''):
+    def restart_subprocess(self, with_cwd=False, filename='', clear=False):
         if self.restarting:
             return self.rpcclt
         self.restarting = True
@@ -503,12 +503,19 @@ def restart_subprocess(self, with_cwd=False, filename=''):
             return None
         self.transfer_path(with_cwd=with_cwd)
         console.stop_readline()
-        # annotate restart in shell window and mark it
-        console.text.delete("iomark", "end-1c")
-        console.write('\n')
-        console.write(restart_line(console.width, filename))
-        console.text.mark_set("restart", "end-1c")
-        console.text.mark_gravity("restart", "left")
+        if clear:
+            # Temporarily remove the iomark to allow deleting all text.
+            console.text.mark_unset("iomark")
+            console.text.delete("0.0", "end")
+            console.resetoutput()
+            console.write_header()
+        else:
+            # Annotate restart in shell window and mark it.
+            console.text.delete("iomark", "end-1c")
+            console.write('\n')
+            console.write(restart_line(console.width, filename))
+            console.text.mark_set("restart", "end-1c")
+            console.text.mark_gravity("restart", "left")
         if not filename:
             console.showprompt()
         # restart subprocess debugger
@@ -893,6 +900,7 @@ def __init__(self, flist=None):
         if use_subprocess:
             text.bind("<<view-restart>>", self.view_restart_mark)
             text.bind("<<restart-shell>>", self.restart_shell)
+            text.bind("<<clear-restart-shell>>", self.clear_and_restart_shell)
         squeezer = self.Squeezer(self)
         text.bind("<<squeeze-current-text>>",
                   squeezer.squeeze_current_text_event)
@@ -1041,24 +1049,27 @@ def short_title(self):
     COPYRIGHT = \
           'Type "help", "copyright", "credits" or "license()" for more information.'
 
+    def write_header(self):
+        self.write(f"Python {sys.version} on {sys.platform}\n"
+                   f"{self.COPYRIGHT}\n")
+        if not use_subprocess:
+            self.write("==== No Subprocess ====\n\n"
+                       "WARNING: Running IDLE without a Subprocess is\n"
+                       "deprecated and will be removed in a later version.\n"
+                       "See Help/IDLE Help for details.\n\n")
+
     def begin(self):
         self.text.mark_set("iomark", "insert")
         self.resetoutput()
         if use_subprocess:
-            nosub = ''
             client = self.interp.start_subprocess()
             if not client:
                 self.close()
                 return False
         else:
-            nosub = ("==== No Subprocess ====\n\n" +
-                    "WARNING: Running IDLE without a Subprocess is deprecated\n" +
-                    "and will be removed in a later version. See Help/IDLE Help\n" +
-                    "for details.\n\n")
             sys.displayhook = rpc.displayhook
 
-        self.write("Python %s on %s\n%s\n%s" %
-                   (sys.version, sys.platform, self.COPYRIGHT, nosub))
+        self.write_header()
         self.text.focus_force()
         self.showprompt()
         import tkinter
@@ -1268,6 +1279,9 @@ def restart_shell(self, event=None):
         "Callback for Run/Restart Shell Cntl-F6"
         self.interp.restart_subprocess(with_cwd=True)
 
+    def clear_and_restart_shell(self, event=None):
+        self.interp.restart_subprocess(with_cwd=True, clear=True)
+
     def showprompt(self):
         self.resetoutput()
         self.console.write(self.prompt)
diff --git a/Misc/NEWS.d/next/IDLE/2020-07-29-22-06-13.bpo-6143.d8pzkH.rst b/Misc/NEWS.d/next/IDLE/2020-07-29-22-06-13.bpo-6143.d8pzkH.rst
new file mode 100644
index 00000000000000..5f994c3669a9ed
--- /dev/null
+++ b/Misc/NEWS.d/next/IDLE/2020-07-29-22-06-13.bpo-6143.d8pzkH.rst
@@ -0,0 +1,2 @@
+Add a "Clear and Restart" item to IDLE's "Shell" menu.  This can be used to
+clear the contents of the shell window.