Dracula alter ego (3)
I believe the answer is:
bat
'dracula alter ego' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for bat that I've seen before include "Small flying mammal - like 11 Across" , "Pipistrelle" , "The cricketer wields it" , "Cricketer; mammal" , "Small mammal or cricket striker" .)