Related Clues:

• It might bite the hand that feeds it
• Carnivorous fish
• Double-dealer
• Underwater menace
• Sharp-toothed swimmer
• Man-eating school
• Voracious swimmer
• Voracious fish
• Toothy fish
• Amazonian carnivore
• Amazon swimmer
• Vicious sorts
• Literally, 'fish tooth'
• Plymouth muscle car
• Ruthless type