Possible Clues:

• Cold food after bread is shock
• Pickled fillet of raw herring
• Piece of filleted fish and portion of bread, sponge to follow
• Piece of filleted fish in bagel, sponge to follow
• With bread, soak up fish
• Go round with cleaner to get bit of food
• Turn and clean fish that's been pickled
• Rolled and pickled herring
• Curled-up herring fillet