Possible Clues:

• Dog runs away from miner
• Army officer with what may be an excuse for a dog
• Between two points, doesn't tell the truth to associate of shepherd
• Fluffy herder
• Sheepdog breed
• 'O, fifty-fifty in ice, doggedly (6)'
• Popular sheepdog
• Miner clipped dog
• One whose work is sheepish for the old king when he's about fifty-one
• Shepherd's aide