Occurred (8)
I believe the answer is:
happened
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">occurred</span>' is the definition.<br/ ><span class="explanation-format__explanation">('happen' can be a synonym of 'occur')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for happened that I've seen before include "Came to pass" , "Took place" , "Occurred" .)