Related Clues:

• Sushi offering
• Electric swimmer
• Sniggler's wriggler
• It can be shocking
• Moray, e.g.
• See 23-Across
• How some packages arrive
• Aquatic shocker
• Aquarium denizen
• Thin fish
• Spitchcock
• See 1-Down
• Wriggly creature
• One in a wriggly field?
• Food fish