Wrong, as it happens going west (4)
I believe the answer is:
evil
'wrong' is the definition.
(associated in meaning)
'as it happens going west' is the wordplay.
'as it happens' becomes 'live' (as in live television).
'going west' is a reversal indicator (letters heading to the west or left).
'live' in reverse letter order is 'EVIL'.
(Other definitions for evil that I've seen before include "heinous" , "Maleficent" , "Depraved" , "A live sort of badness" , "Live kind of badness" .)