Related Clues:

• Field workers
• They get paid to make calls
• They're drafted for service
• Call makers
• Flag throwers
• Ring 5-Downs
• 'Zebras'
• Trampling pair
• Bullock-cart pullers
• Paddy animals
• Manor workers
• Oregon Trail team
• Team with a lot of pull?
• Paddy team
• Drawing pair, perhaps