Kind of card (3)
I believe the answer is:
sim
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">kind of card</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 sim that I've seen before include "Information carrier" , "Role-playing game" , "Card storing data" , "Identifying card in a mobile phone" , "computer game" .)