Answer:

rusts

Answer	Crossword Clue
RUSTS	Oxidizes in the presence of water
RUSTS	Oxidizes
RUSTS	Develops leaks, possibly

RUSTS	Ages badly
RUSTS	Ages from oxidation
RUSTS	Doesn't age well
RUSTS	Ages like iron
RUSTS	Deteriorates, as iron
RUSTS	Autumn colors
RUSTS	Turns red, maybe
RUSTS	What wet iron does, sometimes

RUSTS	Deteriorates, as metal pipes
RUSTS	Corrodes
RUSTS	Deteriorates, in a way
RUSTS	Shows signs of age
RUSTS	Deteriorates through disuse
RUSTS	Gets eaten away, in a way
RUSTS	Shows oxidation
RUSTS	Corrodes, as metal

RUSTS	Becomes corroded
RUSTS	Corrodes, as iron
RUSTS	Fall colors
RUSTS	Becomes oxidized.
RUSTS	Flakes like iron.
RUSTS	Reddish colours.
RUSTS	Becomes dull by inaction.
RUSTS	Corrodes.

RUSTS	Reddish browns.
RUSTS	Impairs by weather.
RUSTS	Deteriorates through disuse.
RUSTS	Suffers disuse.
RUSTS	Shows disuse
RUSTS	Reddish colors
RUSTS	Deteriorates
RUSTS	Autumnal colors

RUSTS	Parasitic fungi
RUSTS	Becomes oxidized
RUSTS	Loses limberness
RUSTS	Sits too long
RUSTS	Dirty films?