Stratagems, ploys (7)
I believe the answer is:
tactics
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">stratagems</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >'<span class="explanation-format__original">ploys</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ ></span>
(Other definitions for tactics that I've seen before include "Short-term strategy" , "Methods employed to achieve an end" , "Art of organising battle" , "Art of military warfare" , "Military strategy" .)