Answer:

ensure

Answer	Crossword Clue
ENSURE	Back up
ENSURE	Dismiss all doubt
ENSURE	Make certain

ENSURE	Make safe
ENSURE	Nail down
ENSURE	Check
ENSURE	Safeguard
ENSURE	Guarantee
ENSURE	Guard
ENSURE	Leave no doubt about
ENSURE	Sew up

ENSURE	Diet supplement
ENSURE	Make certain of
ENSURE	Make certain (that)
ENSURE	Leave no doubt
ENSURE	Protect
ENSURE	Remove any doubt about
ENSURE	Warrant.
ENSURE	Make certain.

ENSURE	Make safe.
ENSURE	Guarantee.
ENSURE	Secure.
ENSURE	Lock up
ENSURE	Cinch
ENSURE	Co-sign, as a loan
ENSURE	Check again
ENSURE	Nutrition drink brand

ENSURE	Double-check, e.g.
ENSURE	Nutritional supplement brand
ENSURE	Cover one's losses
ENSURE	Remove all doubt
ENSURE	Nutrition shake brand
ENSURE	Confirm
ENSURE	Not leave to chance
ENSURE	Nutritional drink brand