Related Clues:

• Early plough pullers
• Wagon pullers
• Teamster's pair
• Domestic bovines
• Big pullers
• They've got a lot of pull
• Plow beasts
• Workers in the field
• Draft beasts
• Yaks, e.g.
• Yoke members
• Plow-pulling pair
• Teamed beasts
• Yak pack
• Some bulls