has-been

has-been

A person who is no longer admired, famous, or popular. The young actor constantly sought media attention because he feared becoming a has-been too early in his career. You're not even a has-been, you're a never-was!
Farlex Dictionary of Idioms.

has

see under have.
The American Heritage® Dictionary of Idioms by Christine Ammer.

has-been

(ˈhæzbɪn)
1. n. someone who used to be important; a person whose career has ended. Marty is just a has-been. There’s no future for him.
2. mod. former; burnt-out. Some has-been singer croaked through “The Star-Spangled Banner.”
McGraw-Hill's Dictionary of American Slang and Colloquial Expressions
See also:
  • has
  • idol
  • fallen idol
  • publicity hound
  • (the) man/woman of the hour
  • be the toast of (some place)
  • be the toast of...
  • a golden boy
  • golden boy
  • be the toast of (the town)