Related Clues:

• Command-Z, on a Mac
• Spoil a Parisian party
• Go-back-a-step computer command
• Cancel — annul — reverse
• Ruin party thrown by peacekeepers?
• Give clues to
• Emergency menu
• Assist the fellow with record
• Ctrl+Z, on a PC
• Free turn I'd got to take at regular intervals
• Back up a step, as in an app
• "Go back" PC command
• Negate, as in Word
• Back in March, courthouse, school and shop all closing
• 'Go back' PC command