Related Clues:

• Reduce the vibration of
• With 29-Down, 'Do not discuss this' ban
• Brief joke
• Keep from spreading, as a rumor
• Laugh line
• Engine valve
• "Eww!"
• Be in need of the Heimlich maneuver
• A bit wet
• Affected by drizzling
• Restrain, in a way
• Slightly soggy
• Suppress completely
• Fail in a crisis
• Contain or suppress