Hocus-pocus (11)
I believe the answer is:
abracadabra
'hocus-pocus' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for abracadabra that I've seen before include "Charm" , "Word used by conjuror" , "it's said, for a spell" , "Magic word used by conjurors" , "Magical incantation" .)