Related Clues:

• "Don't change it"
• Proofreader's 'reinstate' mark
• 33-Across, for an editor
• "Leave as is," to an editor
• Keep in a cage
• Proofreader's "leave it"
• Editor's word in the margins
• "Leave as-is"
• Opposite of 64-Down
• Ignore a Time change?
• Editor's "ignore this"
• Indicator of second thoughts
• Mark meaning 'no change'
• Put in a cell
• Mark of editorial reconsideration