Pulitzer author Walker (5)
I believe the answer is:
alice
'pulitzer author walker' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for alice that I've seen before include "Looking-glass girl" , "Carrol's heroine" , "Adventurous girl created by Lewis Carroll" , "Lewis Carroll's heroine" , "Celia (anag.)" .)