Invest (5)
I believe the answer is:
endue
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">invest</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for endue that I've seen before include "Endow (with a quality)" , "Furnish" , "Put on clothes" , "Invest - provide" , "Invest - supply" .)