Related Clues:

• Long swimmer
• Grownup elvers
• Sushi-bar offering
• Sushi staple
• Erstwhile elvers
• Lampreys, e.g.
• You might get a charge out of it
• Undulating fish
• Long fish
• It's sometimes wrapped in rice
• Sniggler's haul
• Something to sniggle for
• Sea delicacy
• Fish caught in pots
• Sargasso swimmers