Related Clues:

• Achilles's weak spot
• Part of a sock
• Corgi or collie
• Puggle, e.g.
• Furry friend
• Loaf, with "it"
• Man's best friend
• Keel over
• Command to a canine
• Pointer, e.g.
• Popular pet
• See 55 Down
• Husky or hound
• Basenji or borzoi
• Underperforming investment, slangily