Continental currency units
I believe the answer is:
euros
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">continental currency units</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 euros that I've seen before include "Monetary units" , "currency in Greece" , "Continental currency units" , "Units of modern European currency" , "EU currency" .)