Chutzpa (4)
I believe the answer is:
gall
'chutzpa' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for gall that I've seen before include "Spleen or brass neck" , "Growth on tree; bile; resentment" , "Liver's secretion" , "A sore spot or a bodily bladder" , "Bitterness of feeling or bodily bladder" .)