Possible Clues:

• Leaders in South American republic eat fish
• Fish in nasty drains eaten for starter?
• Depressed about Queen up north with One Direction packed in, like, as one?
• Burns up in film?
• A young pilchard; a variety of chalcedony
• Artists turned up to eat fish
• Fish, as diner ordered
• American in diner's ordered fish
• Can occupant eat at bottom of stairs occasionally?
• Fish as served up right to eat