Related Clues:

• Sign of a lurking shark
• Unbribable
• ''That's the truth!''
• Bass part
• See 38 Across
• 'No fooling!'
• Beyond reproach
• $5 bill
• ’50s car feature
• Fish part
• Ending word for some foreign films
• ''I'm not kidding!''
• One of a snorkeler's pair
• Without guile
• ''No fooling!''