Pre-euro Spanish currency (6)
I believe the answer is:
peseta
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">pre-euro spanish currency</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definitions for peseta that I've seen before include "Old bit" , "Pre-euro money unit in Spain" , "currency being superseded" , "Domestic social" , "Former Spanish currency unit" .)