Related Clues:

• Proofer's retraction
• Marginalia notation
• Proofreader's comment
• Manuscript marking, perhaps
• 'Keep this in'
• It's used when you have the wrong change
• Editor's "Never mind"
• Editorial mark
• Dele opposite
• ''Don't change!''
• Editing command
• Editor's ''keep''
• Proofreading notation
• Editor's ''don't delete''
• 'Leave it in'