Negotiate (5)
I believe the answer is:
treat
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">negotiate</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for treat that I've seen before include "Handle; dainty" , "Shout" , "Deal with sickness" , "Act toward or regard in a certain way" , "Try to heal" .)