Main object of dislike (3,4)

I believe the answer is:

pet hate

(Other definitions for pet hate that I've seen before include "Bete noire" , "something that one especially dislikes" , "sulky behaviour?" , "Chief object of dislike" .)

I've seen this clue in The Mirror.

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.