Related Clues:

• Restraining order
• Peace partner
• "Silence!"
• Low in decibels
• *"Shut up!"
• 'I can't hear myself think!'
• "Not another word!"
• Librarian's request
• "Shh!" from a plumber?
• Partner of peace
• "Stop talking!"
• 'Silence!'
• "Shush!"
• Library demand
• "Shhh!"