What comes in handy in golfing final (5)
I believe the answer is:
dying
'final' is the definition.
(as in someone's dying breath)
'what comes in handy in golfing' is the wordplay.
'what comes in' says the answer is hidden in the clue.
'DYING' is hidden within 'handy in golfing'.
(Other definitions for dying that I've seen before include "Perishing" , "On one's last legs" , "final" , "On the way out" , "Moribund" .)