Kicker's aid (3)
I believe the answer is:
tee
'kicker's aid' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for tee that I've seen before include "Golf starting point" , "Golfing item" , "Golfer's peg" , "Where one drives from" , "Golfer's support" .)