Vexation surrounding strangely shy figure (8)
I believe the answer is:
physique
'figure' is the definition.
('physique' can be a synonym of 'figure')
'vexation surrounding strangely shy' is the wordplay.
'vexation' becomes 'pique' (pique is a kind of vexation**).
'surrounding' indicates putting letters inside.
'strangely' indicates anagramming the letters.
'shy' with letters rearranged gives 'hys'.
'pique' enclosing 'hys' is 'PHYSIQUE'.
(Other definitions for physique that I've seen before include "Form" , "Person's build and muscular development" , "Constitution of the human body" , "Bodily type, build, or constitution" , "Shape and size of a person's body" .)