Mia's co-star in "The Great Gatsby" (1974) (6)

I believe the answer is:

robert

(Other definitions for robert that I've seen before include "-- the Bruce" , "Victorian premier" , "---17 ac. 23, explorer" , "Name of three Scottish kings" , "Butterfly" .)

I've seen this clue in The Washington Post.

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.