Related Clues:

• Umpire's call
• Ball's partner
• 'Cinderella' event
• Desi of “I Love Lucy”
• Wax unit?
• Ump's call
• Word that can follow the ends of 17-, 26-, 43- and 58-Across
• See 34-Down
• See 25-Down
• Chain's end, sometimes
• Early sitcom star
• -
• Great time
• Ball partner?
• Party nut