Possible Clues:

• Sheep herder
• Working animal's permanent way out of pit
• Timmy Martin's dog breed
• Shepherd's aide
• Pass over the untruth to a dogged extent
• Barker could make an officer with invention
• Type of sheepdog
• Miner's tailless dog
• One whose work is sheepish for the old king when he's about fifty-one
• Flock watcher