Salty cheese (4)
I believe the answer is:
feta
'salty cheese' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for feta that I've seen before include "Goat's or sheep's milk cheese" , "White Greek cheese" , "Greek cheese from goat or sheep milk" , "Greek salad cheese" , "Salty Greek cheese" .)