Golf stroke (4)
I believe the answer is:
putt
'golf stroke' is the definition.
(I know that putt is a type of golf stroke)
This is all the clue.
(Other definitions for putt that I've seen before include "Strike golf ball on green" , "Attempt to hole ball on green" , "Golf stroke near hole" , "that's not needed if you chip in" , "Green shot" .)