Ancient coin (4)
I believe the answer is:
obol
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">ancient coin</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 obol that I've seen before include "Small currency" , "Old Greek coin" , "Jargon, slang" , "Old bit of lucre" , "Ancient Greek coin, six to the drachma" .)