Crossword Genius

On the back of an animal (6)

Ross

I believe the answer is:

dorsal

(Other definitions for dorsal that I've seen before include "'On the back, a fin on a fish perhaps (6)'" , "On the back, fin on a fish say" , "Kind of fin" , "Fin on the back of marine vertebrates" , "(Of fin) on upper side" .)

I've seen this clue in The Guardian.
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.