View over wing (7)
I believe the answer is:
opinion
'view' is the definition.
(I know that view can be written as opinion)
'over wing' is the wordplay.
'over' becomes 'o' (cricket abbreviation).
'wing' becomes 'pinion' (synonyms).
'o'+'pinion'='OPINION'
(Other definitions for opinion that I've seen before include "Estimation" , "Standpoint" , "View, judgement" , "Viewpoint" , "Belief not founded on proof or certainty" .)