Related Clues:

• Close to tuh's
• Close to 23 across
• Make nothing of this, by the sound of it
• 'Button your lip!'
• "Zip your lip!"
• "Not another word out of you!"
• Close to silence?
• Shut up!
• Imprison and reduce to silence
• Silence in jail!
• Don't gossip in prison?
• Order making South African quiet?
• Don't say 'confine'?
• Lock given order to be quiet!
• Reduce to silence when imprisoned