Related Clues:

• 4 down, 1 to go — lay waste
• Chemical that removes hard bit from leather
• Oxidize, say
• Put protective coat on cow I go out with
• Destroy putting stick through heart
• Iron ___ (rust, e.g.)
• New side, after old team get rusty
• Put protective cover on steer I had oddly in shed
• Iron __: rust
• O compound
• Rust, for instance (z not s)
• Rust or alumina
• Word after "iron" or "nitrous"
• Iron — (rust)