White Greek cheese (4)
I believe the answer is:
feta
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">white greek cheese</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for feta that I've seen before include "Greek 8 across" , "Greek dairy product" , "Salty Greek cheese" , "food there" , "Greek salad cheese" .)