Related Clues:

• One fired from gun
• An apple; a crustacean
• A sea creature; an apple
• Crustacean; - apple
• Tin containing curate's chopped-up seafood
• One may be caught in a terrible row
• It can be caught on the water
• A scarce nut is unusual life form with hard case
• Perhaps crab tin contains sign of decay: something one can't return
• It is often caught on water
• A shot from Beck or Becks?
• It can be embarrassing to catch it
• Eg, lobster
• Sour character beginning to remonstrate aboard taxi
• Beginners in chess realize a bishop is to move obliquely