Legendary marine reptile (3,7)
I believe the answer is:
sea serpent
(Other definitions for sea serpent that I've seen before include "Legendary creature" , "monster of the deep" .)
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.