Cheese in a Greek salad (4)
I believe the answer is:
feta
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">cheese in a greek salad</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for feta that I've seen before include "Soft Greek cheese" , "Goat's or sheep's milk cheese" , "Crumbly Greek cheese" , "White Greek cheese" , "A ewe's, goat's milk cheese" .)