Related Clues:

• Plowers
• Some yokemates
• Calls a game
• Team with a yoke
• Bovine beasts of burden
• Animals in harness
• Cries foul?
• Beasts in a team
• Calls the shots?
• Certain laborers
• Early plough pullers
• Tennis officials
• Sports 'zebras'
• Some whistle-blowers
• Wagon pullers