Criminal deception (5)
I believe the answer is:
fraud
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">criminal deception</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 fraud that I've seen before include "Criminal deception" , "Cheat" , "Charlatan" , "act of deception" , "Deceit, especially financial" .)