Possible Clues:

• Crustacean in pub clean when cooked
• Lean crab (anag) — one with a hard shell
• Crusty marine type lives on boat out from Connemara village and port in Clare
• Farm building -- excellent -- housing large goose
• Sticker on vessel has cow's head, around which written Farmer's Brew?
• Prepared lean crab and another crustacean
• Ban chemical in salt initially exterminating crustacean
• Lean crab (anag.)
• Salt in plain shellfish
• Hanger-on, one locking up pound by farm building