Related Clues:

• "Shoo!"
• Improvisational singing style
• Improvisational style
• Scram ... or a hint to solving 17-, 20-, 50- and 57-Across and 11- and 28-Down
• Mel Torme specialty
• 23 follower
• Ella's specialty
• It comes after 23
• Scram!
• "Vamoose!"
• Jazz singing style
• Dart off
• Ella's thing
• 'Git out!'
• Get lost