Related Clues:

• Theater injunction
• 'Quiet'
• Proctor's warning
• ''Shh!''
• ''Quiet down!''
• Startled silence
• ''Can it!''
• Whisperer's comeuppance
• ''Be quiet!''
• Period of quiet
• "Use your inside voice!"
• 'Quit your crying!'
• Sound from a silencer
• "No more talking!"
• Lullaby opener