Top at a merch table (3)
I believe the answer is:
tee
'top at a merch table' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tee that I've seen before include "Part of course" , "Golfer's support" , "Golf ball support" , "'Drive off it, half-laughing (3)'" , "A golfer hits from here" .)