Magic words (6)
'magic words' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for hey presto that I've seen before include "that's the trick" , "Conjurer's exclamation" , "Cry from magicians" , "with the wave of a magic wand!" , "Spell words" .)
'magic words?' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for spell that I've seen before include "something to cast" , "Incantation; write in letters" , "Name letters of a word" , "Put letters in right order" , "Incantation; splinter of wood" .)
(Other definitions for charms that I've seen before include "Attracts with bracelet ornaments" , "Talismans" , "Wins over" , "Bewitches" , "''Music hath . . . . . . to soothe a savage breast''" .)