Deploying; exploiting (5)
I believe the answer is:
using
<span class="explanation-format__ClueExplanation">I believe this clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">deploying</span>' is the first definition.<br/ ><br/ >'<span class="explanation-format__original">exploiting</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ ></span>
(Other definitions for using that I've seen before include "Employing" , "Putting to a particular purpose" , "taking drugs" , "having recourse to" , "practice" .)