Scam, swindle (3)
I believe the answer is:
con
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">scam</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(both can mean a fraudulent scheme)</span><br/ ><br/ >'<span class="explanation-format__original">swindle</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that swindle can be written as con)</span><br/ ><br/ ></span>
(Other definitions for con that I've seen before include "Have a reason not to" , "one in pen?" , "Diddle" , "Tory" , "Study - trick" .)