Basinger of "Batman” (3)
I believe the answer is:
kim
'basinger of batman' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for kim that I've seen before include "Girl" , "Book" , "Rudyard Kipling novel" , "-- Basinger, US actress" , "Boy's or (now usually) girl's name" .)