Strut surely has wood in for example (6)
I believe the answer is:
sashay
'strut surely' is the definition.
(to sashay is to strut confidently)
'wood in for example' is the wordplay.
'wood' becomes 'ash' (wood from an ash tree).
'in' is an insertion indicator.
'for example' becomes 'say' ('say' can be used to introduce an example).
'ash' placed inside 'say' is 'SASHAY'.
'has' acts as a link.
(Other definitions for sashay that I've seen before include "Walk in showy way" , "parade" , "Walk ostentatiously" , "Casually move" , "Walk exaggeratedly" .)