Related Clues:

• Schoolmaster's order
• 'Enough!'
• Cinema admonition
• 'I've heard enough!'
• 'Button it!'
• 'Shut up!'
• Still
• Mollify
• Make quiet
• 'Hush!'
• Muzzle
• 'Enough already!'
• Sound at the movies
• 'No whispering!'
• Peace