Do wrong in being a deity (4)
I believe the answer is:
odin
'a deity' is the definition.
(Odin is an example)
'do wrong in' is the wordplay.
'wrong' indicates anagramming the letters.
'do' is an anagram of 'od'.
'od'+'in'='ODIN'
'being' acts as a link.
(Other definitions for odin that I've seen before include "His son used bolts" , "mythological personage" , "Legendary ruler" , "Scandinavian war god" , "Chief god of Scandinavian myth" .)