Related Clues:

• Court whistler
• One calling the shots, for short?
• Call a basketball game
• Zebra at a Lions game, say
• Zebra on a court
• Sports official, briefly
• Zebra seen on fields, for short
• Judge with hard heart, one using teeth
• Object of much fall Sunday middle-aged man anger
• TD or TKO caller
• Arena arbiter
• Make calls on the court, briefly
• Ruling body?
• Ice-hockey arbiter
• Red or yellow card issuer