Deity hurting back (4)
I believe the answer is:
eros
'deity' is the definition.
(Eros is an example)
'hurting back' is the wordplay.
'hurting' becomes 'sore' (synonyms).
'back' is a reversal indicator.
'sore' backwards is 'EROS'.
(Other definitions for eros that I've seen before include "Name given to statue" , "Statue of love-god in Piccadilly Circus in London" , "In Greek myth, the god of love" , "I'm in a circus in London" , "Greek love-god" .)