Iranian currency (4)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">iranian currency</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for rial that I've seen before include "Ready" , "foreign money" , "Middle Eastern money" , "Bit of money" , "Cash" .)