Long slippery fishes (4)

I believe the answer is:

eels

(Other definitions for eels that I've seen before include "They swim" , "Sea creatures found in lees" , "Congers" , "Devious types" , "Elongated fish" .)

I've seen this clue in The Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.