Stadium never condemned for accident (12)
I believe the answer is:
misadventure
'accident' is the definition.
(misadventure is a kind of accident)
'stadium never condemned' is the wordplay.
'condemned' indicates an anagram.
'stadium'+'never'='stadiumnever'
'stadiumnever' is an anagram of 'MISADVENTURE'.
'for' is the link.
(Other definitions for misadventure that I've seen before include "disaster" , "Bad luck; accidental killing" , "Accident" , "Unfortunate incident" , "Mishap" .)