Arcane (8)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">arcane</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for esoteric that I've seen before include "Mystic" , "Secret, mysterious" , "Support jutting out from wall" , "Secret; taught to few" , "Cryptic" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">arcane</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for abstruse that I've seen before include "Hard to understand, complicated" , "Difficult to penetrate or understand" , "Hard to understand, recondite" , "Difficult to understand, obscure" , "Hard to understand, perhaps profound" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">arcane</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for mystical that I've seen before include "of occult rites" , "Inexplicable" , "Having a spiritual significance" , "Occult, spiritual" , "Sacredly obscure" .)