Ostracise from a profession (9)

I believe the answer is:

blackball

(Other definitions for blackball that I've seen before include "Negative vote to veto" , "Reject" , "Shut out (of a group)" , "Refuse to endorse" , "bar?" .)

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.