Wrathful emotion (3)
I believe the answer is:
ire
'wrathful emotion' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ire that I've seen before include "Intense anger" , "heat" , "'Anger, wrath (3)'" , "Irritation, anger" , "Annoyance, vexation" .)