Mystic's board
I believe the answer is:
ouija
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mystic's board</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for ouija that I've seen before include "- Board may be used in a seance" , "Board able to answer questions?" , "Type of board used in seances" , "Board sometimes used at seances" , "This board is used by spiritualists and seances" .)