Casanova in Paris, dear, embracing what comes to hand? (7)
I believe the answer is:
charmer
'casanova' is the definition.
(thesaurus)
'in paris dear embracing what comes to hand?' is the wordplay.
'in paris dear' becomes 'cher' ('dear' in French).
'embracing' means one lot of letters goes inside another.
'what comes to hand?' becomes 'arm' (an arm leads up to a hand).
'cher' going around 'arm' is 'CHARMER'.
(Other definitions for charmer that I've seen before include "One playing with snake" , "Highly attractive person" , "See 6" , "One working with snake" , "One having magical effect" .)