Comes about (6)
I believe the answer is:
arises
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">comes about</span>' is the definition.<br/ ><span class="explanation-format__explanation">(arising is a kind of coming about)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for arises that I've seen before include "Gets up or comes up" , "Gets out of bed" , "Comes to notice, like committee business" .)