Related Clues:

• Mule's father
• One may use hand signals
• Farmer in the spring
• Stupid fellow
• Foolish one
• One who cries foul?
• Biblical transport
• Bonehead
• Balaam's beast
• Ring leader?
• Crche critter
• Gridiron official, for short
• Earth mover
• Stubborn animal
• Penalty declarer