Possible Clues:

• S American native finds top unknown horse to back
• Huge rodent film director Frank captures by rotating camera, ultimately
• Rodent that may weigh over 100 pounds
• Large rodent
• The largest living rodent, resembling a large guinea-pig
• 12 to limit return of the ancient Middle East?
• The largest living rodent
• Pig-sized amphibious Central and South American rodent
• Rodent quietly hiding in islet upset horse
• Better territory ultimately — except for a S American rodent!