Weaken or damage the functioning of (6)

I believe the answer is:

impair

(Other definitions for impair that I've seen before include "Damage or handicap" , "Hobble" , "Make worse or less effective" , "blunt" , "Hinder" .)

I've seen this clue in the Sydney Morning Herald.

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.