A safe haven (6)
I believe the answer is:
asylum
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">a safe haven</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for asylum that I've seen before include "Refuge or home for mentally ill" , "Haven or hospital for the mentally ill" , "find sanctuary there" , "Institution for care of the insane" , "Place of shelter or refuge" .)