Possible Clues:

• One might be dogged at short leg
• Second-rate resource
• Hound the fool appearing in a flutter
• Being short in the leg it's all to the good to be short of a head
• Back holding an animal: a dog
• Are its short legs a confounded advanage?
• Mongrel as best dog
• A dog given fish to eat - head and tail only
• Sort of horn to summon a hound
• Hound born in a group?