Answer: GREW

AnswerCrossword Clue
GREWAccrued.
GREWBoomed
GREWRose
GREWDeepened
GREWSnowballed
GREW... up (matured)
GREWAccreted
GREWRose gradually
GREWProspered
GREWSprung up
GREWFlourished
GREWFilled out
GREWSprouted.
GREWThrived.
GREWSprang up.
GREWBurgeoned.
GREWIncreased.
GREWProspered.
GREWMounted.
GREWFormer U. S. Ambassador to Japan.
GREWWaxed.
GREWBecame larger
grewto become
grewto increase in size; develop
grewpast tense of grow
grewto cause or allow to grow; cultivate
grewto shudder (to shiver or tremble)
GREWEvolved
GREWWas a good investment
GREWBecame enlarged
GREWBranched out
GREWAttained stature.
GREWGained weight
GREWBecame an adult (with "up")
GREWIncreased in size
GREWReached maturity
GREWAchieved greater proportions
GREWAdded inches
GREWWhat fanbase did after tour
GREWOpposite of contracted