Related Clues:

• He'll let you know if you're out of bounds
• Ring judge
• Volleyball VIP
• Clock stopper, at times
• Fairness determiner
• Ring figure, for short
• Certain official
• One who may cry foul
• One whistling at athletes?
• Sport authority
• Gridiron decider
• NFL mike wearer
• Icing decider
• Fellow with a flag
• Sports judge