Related Clues:

• Pack carrier
• Symbol of stubbornness
• Cart puller
• Lazy animal?
• Canyon carrier
• Lounging slipper, e.g.
• Stubborn creature
• Francis, for one
• Dope deliverer
• Comfortable slipper
• Sterile pack animal
• Low-level smuggler
• It's often hard to budge
• Grand Canyon transportation
• TV's Francis, for one