Related Clues:

• Quahog, e.g.
• Silent sort
• Chowder type
• Paradigm of happiness
• Chowder bit
• Close-mouthed one
• Littleneck, e.g.
• Symbol of silence
• Bisque morsel
• Seafood item
• Chowder ingredient
• Hardly a big talker
• One unwilling to talk
• Dollar, slangily
• Happy bivalve?