Wearable souvenir (3)
I believe the answer is:
tee
'wearable souvenir' 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 "Golfer's peg" , "Start of a hole in golf" , "Golfer's starting point" , "Golfer drives from it" , "Where one drives from" .)