Related Clues:

• Buzzer?
• Impose quiet
• Birds do it
• With 20-Down, airshow activities
• Something in the ointment?
• House buzzer
• Something that shouldn't be left open
• 'Quiet, you!'
• Do the American thing?
• "Keep it down!"
• Horse ____
• Trout lure
• Go by space shuttle
• Take the plane
• Pitcher plant victim