Enchantment (5)
I believe the answer is:
magic
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">enchantment</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 magic that I've seen before include "Illusory feat" , "Brilliant -- deception" , "Enchantment" , "Witchcraft" , "Art that supposedly invokes supernatural powers" .)