Related Clues:

• Soldier's necessity, briefly
• 24 Across stock
• Postage-stamp backing
• Pistol pellets
• Ceramic repair need
• Munitions, for short
• Viscous substance
• Magazine's contents
• Modeler's adhesive
• Shot in the arm?
• Gun shop purchase
• Cartridges
• Bullets and shells, for short
• Gun dealer's stock
• BBs, say