Wrong base for dessert (5)
I believe the answer is:
place
This clue is a triple definition!
'wrong' is the first definition.
(thesaurus)
'base' is the second definition.
(synonyms)
'for dessert' is the third definition.
(thesaurus)
(Other definitions for place that I've seen before include "vacancy" , "Spot" , "Endearingly pretty" , "Identify -- station" , "Situation" .)