Through being given an opportunity, maybe (9)
I believe the answer is:
perchance
'maybe' is the definition.
(synonyms)
'through being given an opportunity' is the wordplay.
'through' becomes 'per' ('per' can mean through or by means of).
'being given' means one lot of letters go next to another.
'an opportunity' becomes 'chance' ('chance' can be a synonym of 'opportunity').
'per'+'chance'='PERCHANCE'
(Other definitions for perchance that I've seen before include "'To sleep: -------- to dream:' Hamlet" , "possibly" , "Maybe (to dream? - Hamlet)" , "As it may happen" .)