Answer:

rust

Answer	Crossword Clue
RUST	Deteriorate
RUST	Clunker feature
RUST	Corrode

RUST	Sign of deterioration
RUST	Reddish-brown
RUST	Common corrosion
RUST	Corrosion cause
RUST	Degenerate from lack of use
RUST	Reddish-brown shade
RUST	Sign of disuse
RUST	Strong reddish-brown

RUST	Pipe problem
RUST	Drum out
RUST	Antique coating, perhaps
RUST	Result of oxidation
RUST	Stain near a drain, often
RUST	Oxidize
RUST	Sign of neglect
RUST	Oxidation indication

RUST	Reddish brown
RUST	Sign of decay
RUST	Auto body concern
RUST	Symbolic cause of impaired ability
RUST	Sign of aging
RUST	Age, in a way
RUST	Sign of auto body aging
RUST	Tin Man's worry

RUST	Drain stain
RUST	Sign of age
RUST	Tin Woodman's affliction
RUST	Deteriorate, in a way
RUST	Iron oxidation
RUST	Old car worry
RUST	Lack of practice, metaphorically
RUST	Undercoating prevents it

RUST	Used car worry
RUST	Nonuse
RUST	Corruption, in the steel business
RUST	Fall color
RUST	Junkyard phenomenon