Former Portuguese monetary unit (6)
I believe the answer is:
escudo
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">former portuguese monetary unit</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 escudo that I've seen before include "Smash in C Verde" , "Former Eur. currency" , "Former European currency unit" , "Former Portuguese coin" , "Unit of Portuguese money" .)