Possible Clues:

• Another term for some cur — a scallywag?
• 1969 film, based on a book by Sterling North
• Scoundrel put in Broadmoor as calculating
• Tinker a little, using starter only after car's repaired
• Rogue artist reaching Southern California
• Scoundrel in opera scaled walls
• Rogue gunmen's state
• Troublemaker
• Cad
• Troublemaker, a scallywag at heart