The term ALAN OF 'ARGO' refers to Alan Arkin, an American actor, director, and screenwriter. He is best known for his roles in films such as The Russians Are Coming, The Russians Are Coming (1966), The Heart Is a Lonely Hunter (1968), Catch-22 (1970), Little Miss Sunshine (2006), and Argo (2012). He won an Academy Award for Best Supporting Actor for his performance in Little Miss Sunshine. His five-letter crossword solution is ARKIN.