Hammer-thrower in village rendered powerless (4)
I believe the answer is:
thor
If this is the answer, I'm afraid I cannot explain it.
Can you help me to learn more?
(Other definitions for thor that I've seen before include "Norse hammer-wielding god" , "Norse god for whom Thursday is named" , "Norse god wielding a hammer" , "Norse god of thunder - a weekday is named after him" , "can be classed as immortal" .)