Start of a horse race (3)

I believe the answer is:

off

(Other definitions for off that I've seen before include "Far from fresh" , "Gone away or gone stale" , "On holiday" , "Rotten" , "(Of food) no longer fresh" .)

I've seen this clue in The Sun.

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.