Use, utilise (6)
I believe the answer is:
employ
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">use</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">utilise</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for employ that I've seen before include "Engage or hire for work" , "Take on - recruit" , "Use or take on" , "Give job to (someone)" , "Use or give job to" .)