Related Clues:

• ''Stifle yourself!''
• “Be quiet!”
• "Zip your lip"
• "Hey, that's enough!"
• "Enough already!" or what one may do to each answer to a starred clue
• 'Hush your mouth!'
• “Hush!”
• "Pipe down!," and an instruction for 18-, 25-, 43-, and 57-Across
• Could this possibly hold your tongue!?
• "I've heard enough from you!"
• "Not another word"