Support worker for stroke (8)
I believe the answer is:
backhand
'stroke' is the definition.
(backhand is a kind of stroke)
'support worker' is the wordplay.
'support' becomes 'back' (back is a kind of support).
'worker' becomes 'hand' (hand is a kind of worker).
'back'+'hand'='BACKHAND'
'for' is the link.
(Other definitions for backhand that I've seen before include "stroke, in court" , "tennis side" , "Writing style" , "A racket stroke" , "Tennis stroke" .)