Related Clues:

• Marine mollusk
• Untalkative one
• Secretive sort
• Equivalent of ten mills
• Quahog, e.g.
• Silent sort
• Chowder type
• Gumball cost, once
• Dollar division
• Lincoln's coin
• Monetary unit
• Where Abe faces right
• Paradigm of happiness
• 1/100 of a euro
• Trifling amount, in a phrase