Souvenir shop staples (4)
I believe the answer is:
tees
'souvenir shop staples' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for tees that I've seen before include "Middlesbrough's river" , "often damaged by drivers" , "English river" , "River on which Middlesbrough stands" , "Northern river" .)