Possible Clues:

• Garlicky shrimp saute
• Trick Greek character taking seafood
• Surface of sea affected one lot of prawns
• Prawns, usually fried
• Trick played on relation with seafood
• 'Seafood' is a cheat: nearly all pastry
• Large prawn
• Shrimp lover's treat
• Crustaceans - almost the very same river contained
• Italian seafood