Crossword Puzzle Spherical intro?

Clue: Spherical intro?

Spherical intro (ATMO with 4 letters)
Matter of fact introduction? (ASA with 3 letters)
Intro givers (MCS with 3 letters)
Broadway flop about an introduction to actor Bridges? (HELLOLLOYD with 10 letters)
Spherical Nintendo character (KIRBY with 5 letters)
He does intros (EMCEE with 5 letters)
Word used to introduce two alternatives (WHETHER with 7 letters)
Were introduced (MET with 3 letters)
Classic introduced by Whiteman: 1924 (RHAPSODYINBLUE with 14 letters)
Spherical opening? (e.g. ATMO with 4 letters)