Related Clues:

• Eeyore, e.g.
• Jerk-off
• Prospector's beast of burden
• Zebra kin
• Cousin of a zebra
• Jenny, for one
• Balky beast
• Zebra's cousin
• Certain equine
• Crack house?
• The law, per Dickens
• Grand Canyon denizen
• Mule's daddy
• Aesopian animal
• Word after dumb or smart