Pay for, at the kiosk (5)
I believe the answer is:
stand
I believe this clue is a double definition.
'pay for' is the first definition.
(as in to stand someone a drink)
'the kiosk' is the second definition.
(I've seen this in another clue)
'at' is the link.
(Other definitions for stand that I've seen before include "partnership" , "Base < put up with" , "Platform; attitude" , "Tolerate - resistance" , "Rise; bear" .)