Treat by exposure to rays (9)
I believe the answer is:
irradiate
(Other definitions for irradiate that I've seen before include ""One fine day" would do" , "Make bright" , "Shed light on" , "Shine light on" .)
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.