Fortunate and profitable occasion (7)

I believe the answer is:

bonanza

(Other definitions for bonanza that I've seen before include "Huge stroke of luck" , "Unexpected rich windfall" , "Mine of wealth" , "Lucky strike of wealth" , "Unexpected wealth or luck" .)

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.