Rich opportunity, figuratively (5)

I believe the answer is:

brass

(Other definitions for brass that I've seen before include "impudence" , "Nerve (but not of steel!)" , "Alloy; money" , "Baggage" , "Descriptive of 7's instrument" .)

I've seen this clue in The Wall Street Journal.

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.