Greek marketplace (5)
I believe the answer is:
agora
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">greek marketplace</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for agora that I've seen before include "Ancient Greek market area" , "Marketplace in Athens" , "Israeli monetary unit" , "A public place" , "(Many-headed) monster" .)