Related Clues:

• Loosen, as shoelaces
• Ctrl+Z
• Computer's mistake-fixing command
• Spreadsheet reversal command
• Reverse, as a decision
• Command after making a mistake
• "Back up" command, in word processing
• Open, as a necktie
• Excel command
• Certain computer command
• Crime scene clue
• Command after "Oops!"
• 'Go back,' on an edit menu
• Useful word processor feature
• Order to the computer