Plot or scheme (11)
I believe the answer is:
machination
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">plot</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I know that machination is a type of plot)</span><br/ ><br/ >'<span class="explanation-format__original">scheme</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I know that machination is a type of game)</span><br/ ><br/ ></span>
(Another definition for machination that I've seen is " Plot".)