Crossword Genius

Bull, thankless animal (4)

Ross

I believe the answer is:

urus

(Other definitions for urus that I've seen before include "bovine, now extinct" , "Animal hunted to extinction" , "old beef supplier" , "Aurochs" .)

I've seen this clue in The Times.
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.