Anchorite (6)
I believe the answer is:
hermit
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">anchorite</span>' is the definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for hermit that I've seen before include "Eremite" , "Ascetic who leads an isolated life" , "Person or crab living in solitude" , "One who lives in solitude, like kind of crab" , "Solitary person, anchorite" .)