Quarantined (8)
I believe the answer is:
isolated
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">quarantined</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I know that quarantined can be written as isolated)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for isolated that I've seen before include "Alone, set apart" , "Cut off, remote" , "Remote, set apart" , "Single" , "Set apart from others" .)