Answer: wildfire

AnswerCrossword Clue
WILDFIREFast-moving destroyer
WILDFIRESweeping conflagration
WILDFIREHeat lightning
WILDFIRESheet lightning
WILDFIRESymbol of success
WILDFIREMetaphor for quick-spreading success
wildfireA large, destructive forest- or brush-fire that spreads quickly
wildfireraging destructive fire
wildfireA combustible liquid such as Greek fire that was readily ignited and difficult to extinguish, used esp. in warfare