Fruit not right served with a cheese variety (5)
I believe the answer is:
gouda
'cheese variety' is the definition.
(I've seen this in another clue)
'fruit not right served with a' is the wordplay.
'fruit' becomes 'gourd' (gourd is a kind of fruit).
'not' is a deletion indicator.
'right' becomes 'r' (common abbreviation).
'served with' says to put letters next to each other.
'gourd' with 'r' taken away is 'goud'.
'goud'+'a'='GOUDA'
(Other definitions for gouda that I've seen before include "Mild Dutch cheese" , "type of cheese" , "Round Dutch cheese" , "It comes from Holland" , "Dutch 4 across" .)