Persona non _____ (5)

I think it could be either:

grata

grate

(Another definition for grata that I've seen is " See 14".)

I've seen this clue in the King Feature Syndicate, the Sydney Morning Herald, the LA Times, The Wall Street Journal, The New York Times and the Universal.

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.