Arabian Nights hero (3,4)
'arabian nights hero' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for ali baba that I've seen before include "He outwitted robbers" , "Pantomime hero who defeated forty thieves" , "fictional character)" , "With 40 Thieves, he's a fictional Arab" , "Pantomime hero who contended with 40 thieves" .)
(Other definitions for aladdin that I've seen before include "Light rubber" , "And dial up the owner of a magic lamp" , "Lad with a lamp" , "Magic lamp man" , ".Pantomime hero with magic lamp" .)