Understood by few (8)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">understood by few</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for esoteric that I've seen before include "Hard to understand" , "Understandable by only an enlightened inner circle" , "Aimed at a few" , "Private, confined to a select group" , "Occult" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">understood by few</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 arcane that I've seen before include "Ace ran, being mysterious" , "Mysterious, understood by few" , "Mysterious - an acre (anag)" , "Recondite" , "Requiring special knowledge" .)