US buffalo (5)

I believe the answer is:

bison

(Other definitions for bison that I've seen before include "Wild ox of the prairies" , "European beast" , "Kind of shaggy cattle" , "Wild cow" , "North American buffalo" .)

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.