Stone or Watson of the big screen (4)

I believe the answer is:

emma

(Other definitions for emma that I've seen before include "classic work" , "Female" , "book" , "Flaubert's heroine" , "It's a girl - ask me ma" .)

I've seen this clue in The New York Times.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.