Crossword Heaven

Answer: CLAMSUP

CLAMSUP is a crossword puzzle answer that we have spotted 11 times.

• Is tight-lipped
• Stops talking suddenly
• Forgoes conversation
• Goes mum
• Goes mum
• Stops talking
• Decides to stop talking
• Figuratively, stops talking ... or, literally, what are hidden in this puzzle's four longest answers
• Zips one's lip
• Goes quiet
• *New England-style chowder, for one