Related Clues:

• Debate stopper
• It may stop the presses
• "Quiet!"
• 'Quiet down!'
• 'Zip it!'
• 'I don't want to hear it!'
• Library imperative
• Court restraint
• ''Be still!''
• ''Pipe down!''
• Less apt to speak
• Urge to be quiet
• ''Can it!''
• ''Be quiet!''
• "No more talking!"