Supreme commander of a fleet or navy (7)

I believe the answer is:

admiral

(Other definitions for admiral that I've seen before include "[NELSON] perhaps" , "Commander of the fleet or butterfly" , "Blake, for one" , "Naval officer of high rank" , "Brightly coloured butterfly" .)

I've seen this clue in The Mirror and The Independent.

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.