Arm needed to be treated for wound (9)
I believe the answer is:
meandered
'wound' is the definition.
('meander' can be a synonym of 'wind')
'arm needed to be treated' is the wordplay.
'to be treated' indicates anagramming the letters.
'arm'+'needed'='armneeded'
'armneeded' anagrammed gives 'MEANDERED'.
'for' acts as a link.
(Other definitions for meandered that I've seen before include "Wandered at random" , "Wandered randomly" , "Wandered around aimlessly" , "(Of river) snaked" , "Named deer who wandered about" .)