Racecourse distance (7)

I believe the answer is:

furlong

(Other definitions for furlong that I've seen before include "Measure of distance" , "A few chains" , "One-eight of a mile" , "1/8th of a mile" , "220 yards" .)

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.