Related Clues:

• One who won't tell
• Symbol of happiness
• "B.C." money
• Steamer, e.g.
• Chowder choice
• Delicacy from the sea
• Thing to be as happy as
• Chowder chunk
• Nontalkative one
• Silent type
• Happy mollusk?
• Cherrystone, e.g.
• Mollusk with an irregular shell
• Chowder flavor
• Simoleon