Hardly a pro (4)

I believe the answer is:

anti

(Other definitions for anti that I've seen before include "An opponent - opposed to party policy, etc" , "Who pooh-poohs all" , "one opposing?" , "Definitely not pro" , "Adversary" .)

I've seen this clue in The New York 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.