The reason given to justify an offence (6)

I believe the answer is:

excuse

(Other definitions for excuse that I've seen before include "A defence for bad behaviour" , "Forgive - allow to pass - plea" , "Free - apology" , "Grant exemption or release to" , "Release (from a duty)" .)

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.