Magical incantation (5)
I believe the answer is:
spell
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">magical incantation</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 spell that I've seen before include "Short time, splinter" , "term" , "Incantation; splinter of wood" , "influence" , "Write letters correctly" .)