Confront unpleasant consequences (4,3,5)
I believe the answer is:
face the music
'confront unpleasant consequences' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for face the music that I've seen before include "brave encounter" , "Brave a hostile situation" , "Confront unpleasant consequences" , "Confront the consequences of one's actions" , "Look to score" .)