Related Clues:

• Vulpine, in a way
• Not very competent
• One with a Rocky career
• "You ___ dog, you!"
• __ as a fox
• Sneaky and smart
• Adjective for 22-Down
• On the ___ (furtively)
• Like con artists
• Skilled at subtlety
• Stone or Stallone
• Likely to err
• Clandestine and canny
• Like a three-card monte player
• Not skillful