Magic words in typos, here, wrongly (3,6)
I believe the answer is:
hey presto
'magic words' is the definition.
(I've seen this before)
'typos here wrongly' is the wordplay.
'wrongly' indicates an anagram.
'typos'+'here'='typoshere'
'typoshere' is an anagram of 'HEY-PRESTO'.
'in' acts as a link.
(Other definitions for hey presto that I've seen before include "with the wave of a magic wand!" , "before your very eyes" , "Conjuror's command or exclamation" , "Abracadabra" , "revealing remark?" .)