Related Clues:

• Sushi bar order, perhaps
• Unagi, in a sushi bar
•     Slippery sort
• Elongated fish
• Game fish
• Migratory creature
• It may be smoked
• Metamorphosing fish
• Vividly colored fish
• Snaky swimmer
• Bioelectric fish, sometimes
• It was 'boil'd in broo',' in the ballad 'Lord Randal'
• Brilliantly-colored food fish
• Symbol of slipperiness
• Sushi order, perhaps