Refreshments in the police station (4)
I believe the answer is:
ices
'refreshments' is the definition.
(an ice or ice cream is a type of refreshment)
'in the police station' is the wordplay.
'in' indicates the answer is hidden within the clue.
'ICES' can be found hidden inside 'police station'.
(Other definitions for ices that I've seen before include "Kills (slang) - sweets" , "Freezes" , "Decorates cakes with frosting" , "Frozen sweets" , "Cold refreshments" .)