Stylish sprinting (7)
I believe the answer is:
dashing
This clue is a double definition.
'stylish' is the first definition.
(I've seen this before)
'sprinting' is the second definition.
('dash' can be a synonym of 'sprint')
(Other definitions for dashing that I've seen before include "Rakish" , "Making haste" , "Game" , "sprinter's talent?" , "Frustrating; debonair" .)