Being in wrong scene, exit (9)
I believe the answer is:
existence
'being' is the definition.
(synonyms)
'wrong scene exit' is the wordplay.
'wrong' indicates an anagram.
'scene'+'exit'='sceneexit'
'sceneexit' with letters rearranged gives 'EXISTENCE'.
'in' is the link.
(Other definitions for existence that I've seen before include "survival" , "State of being" , "A way of living" , "Way of life" , "The business of being" .)