Decide not to get involved (3,3)

I believe the answer is:

opt out

(Other definitions for opt out that I've seen before include "Decide not to participate" , "'Choose not to take part (3,3)'" , "Decide to withdraw" , "Choose not to do something" , "Choose not to participate" .)

I've seen this clue in The Guardian.

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.