Answer: snowball

AnswerCrossword Clue
SNOWBALLGather momentum
snowballto increase at a rapid rate
snowballA dessert resembling a ball of snow, esp. one containing or covered in ice cream
snowballA thing that grows rapidly in intensity or importance
snowballA ball of packed snow, esp. one made for throwing at other people for fun
snowballA cocktail containing gin, anisette, and cream
SNOWBALLRapidly increase in size
SNOWBALLCold war ammunition?
SNOWBALLAccumulate rapidly
SNOWBALLGet bigger
SNOWBALLAccumulate and accelerate
SNOWBALLMissile of a sort
SNOWBALLAccumulate rapidly.
SNOWBALLCold war missile?
SNOWBALLWinter weapon
SNOWBALLWinter missile
SNOWBALLWinter ammo