Fireman's wrath (3)
I believe the answer is:
ire
'wrath' is the definition.
(both can mean anger)
'fireman's' is the wordplay.
'IRE' is hidden within the letters.
However, I'm not sure how this is indicated.
Can you help me to learn more?
(Other definitions for ire that I've seen before include "Fury" , "Strong emotion" , "exasperation" , "Strong feeling" , "resentment" .)