Disappeared (8)
I believe the answer is:
vanished
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">disappeared</span>' is the definition.<br/ ><span class="explanation-format__explanation">('vanish' can be a synonym of 'disappear')</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for vanished that I've seen before include "Disappeared without trace" , "disappeared from view" , "disappeared from sight" , "gone" .)