Possible Clues:

• Breed of dog - Territorial Army volunteer
• Persistent person, having row, about to make a mistake
• Small, active breed of dog
• Dog - army volunteer - land register
• Not chow for the soldier
• That dog might not be right in the row
• Volunteer soldier, one who endeavours to protect Her Majesty
• Row about slip up in the inventory
• Part-time soldier making row about mistake
• A small dog