Crossword Clue:

to make or become less

Answer	Crossword Clue
TURNAROUND	How to make more or less a traffic circle
RELAX	Become less severe or strict
RAREFY	Make thin or less dense.

DUST	Tidy up ... or make less tidy
INURE	Become less sensitive (to)
ABLER	Less likely to make mistakes
DEBUG	Make less likely to crash?
CASTDOUBT	Make something seem less likely to be true
POISONPILL	Tactic to make something less desirable, in financial slang