Crossword Genius

Reddish-brown equine (8)

Ross

I believe the answer is:

chestnut

(Other definitions for chestnut that I've seen before include "Golden to reddish brown colour" , "Brown horse" , "Golden-brown or reddish-brown horse" , "Laughably predictable" , "not a cracker!" .)

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.