Cheats, diddles (4)
I believe the answer is:
cons
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">cheats</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(conning is a kind of cheating)</span><br/ ><br/ >'<span class="explanation-format__original">diddles</span>' is the second definition.<br/ ><span class="explanation-format__explanation">('con' can be a synonym of 'diddle')</span><br/ ><br/ ></span>
(Other definitions for cons that I've seen before include "Arguments against" , "Tricks" , "Swindles" .)