Related Clues:

• Surefooted animals
• Beast with a backpack
• Onager
• ''A Midsummer Night's Dream'' animal
• ''Equus'' member
• Eeyore, e.g.
• They may get in shape or gear
• Jerk-off
• Cousin of a zebra
• Jenny, for one
• Balky beast
• Zebra's cousin
• Certain equine
• Crack house?
• The law, per Dickens