Mystical emanation (4)
I believe the answer is:
aura
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">mystical emanation</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 aura that I've seen before include "Particular ambience" , "Emanation - distinctive air" , "Characteristic air of person" , "Intangible atmosphere" , "'Air, atmosphere (4)'" .)