Dramatist who wrote The Seagull and Uncle Vanya (7)
I believe the answer is:
chekhov
(Other definitions for chekhov that I've seen before include "Anton ---, Russ. author" , "Writer of "The Cherry Orchard"" , "The Seagull's author" , "Anton ..., Russian dramatist" , "Wrote The Seagull and Three Sisters" .)