Necessitates (7)
I believe the answer is:
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">necessitates</span>' is the definition.<br/ ><span class="explanation-format__explanation">(entailing is a kind of necessitating)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for entails that I've seen before include "Necessitates" , "Involves, makes necessary" , "Has as a direct consequence" , "limits of will" , "Has as a logical consequence" .)