Possible Clues:

• Greasy substance used to waterproof leather
• Confer with writer about proofing
• Endlessly creating names for waterproofing product
• Shoe-softening agent
• Label on container for leather treatment
• Inconclusive accolade for guard which should be rubbed in
• Tallow mixture used to make leather waterproof
• Label container for kid's protection
• Grease's leathers in Dublin left out for a supporting film
• It's used to make leather soft and waterproof