Enmesh (6)
I believe the answer is:
engage
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">enmesh</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for engage that I've seen before include "Join" , "Take on (eg for work, in battle)" , "Employ or get involved in battle" , "Hire (a worker)" , "Occupy (interest)" .)