Related Clues:

• Non-speaking performer
• Soup or sandwich ingredient
• Marine mollusk
• Untalkative one
• Secretive sort
• Act out
• Quahog, e.g.
• Silent sort
• Chowder type
• Paradigm of happiness
• Chowder bit
• Invisible box captive
• Performer in whiteface
• Close-mouthed one
• Pretend to sing