Fierce word of reproach? (3)
I believe the answer is:
fie
'word of reproach?' is the definition.
(I've seen this in another clue)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for fie that I've seen before include "Cry of dismay" , "Shame!" , "Expression of disgust or outrage" , "Yuck!" , "Interjection of disgust" .)