Fired with fury (3)
I believe the answer is:
ire
'fury' is the definition.
(ire is intense rage)
'fired with' is the wordplay.
'with' indicates a hidden word.
'IRE' can be found hidden inside 'fired'.
(Other definitions for ire that I've seen before include "Paddy" , "Irritation, anger" , "Annoyance, vexation" , "Anger, rage" , "'Anger, wrath (3)'" .)