Answer:

increase

Answer	Crossword Clue
INCREASE	Up
INCREASE	Step up
INCREASE	Uptick

INCREASE	Build up
INCREASE	Go up, as prices
INCREASE	Bump up
INCREASE	Augmentation
INCREASE	Ramp up
INCREASE	Grow and thrive
INCREASE	Mushroom, e.g.
INCREASE	Grow

INCREASE	Swell
INCREASE	Augment.
INCREASE	Pay raise.
INCREASE	One of the Mathers.
INCREASE	Add to.
INCREASE	Heightening.
INCREASE	Multiply.
INCREASE	Multiply

INCREASE	Wax
INCREASE	Addition
INCREASE	Puritan Mather
INCREASE	Augment
INCREASE	... Mather, clergyman-Harvard president
INCREASE	Step-up
INCREASE	Double or triple, say
INCREASE	Boost

INCREASE	A Mather