Crossword Clue:

to cleanse by hard rubbing

Answer	Crossword Clue
SCOUR	Cleanse by rubbing.
SCOURS	Cleans by hard rubbing
SCARCE	Hard to come by

RARE	Hard to come by
AMPLE	Hardly hard to come by
DIM	Hard to read by, as light
LIVEPERSON	Something hard to get nowadays by phone
PHONETAG	"Game" played by hard-to-reach people
OUTOFPRINT	Hard to come by, in a way