Word of reproach (3)
I believe the answer is:
fie
'word of reproach' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for fie that I've seen before include "Exclamation of mock dismay" , "Yuck!" , "Interjection of disgust" , "Expression of disgust or outrage" , "Shame!" .)