Hammer-hurling god (4)
I believe the answer is:
thor
'hammer-hurling god' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for thor that I've seen before include "One of the Norse gods" , "Scandinavian god of thunder and the weather" , "Scandinavian thunder-god" , "Norse god of thunder - a weekday is named after him" , "Imitative artistic work" .)