Magician using weird crosses without hesitation (9)
I believe the answer is:
Here is my best explanation:
'magician' is the definition.
(sorceress is a kind of magician)
'weird crosses without hesitation' is the wordplay.
'weird' is an anagram indicator.
'without' indicates putting letters inside ('without' can be similar in meaning to 'outside').
'hesitation' becomes 'er'.
'crosses' anagrammed gives 'sorcess'.
'sorcess' placed around 'er' is 'SORCERESS'.
'using' is the link.
(Other definitions for sorceress that I've seen before include "Spell-casting female", "charming female", "She spells", "one who has magic powers", "Say, Medea", "Witch", "Enchanting female", "Circe, perhaps" and "Female magician".)