Brass, but not bronze (4)

I believe the answer is:

gall

(Other definitions for gall that I've seen before include "Sheer impudence from bladder?" , "Growth on tree; bile; resentment" , "Impudence, cheek" , "Bitterness of feeling or bodily bladder" , "Bold impudent behaviour; abnormal growth on tree" .)

I've seen this clue in the Newsday.

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.