Answer: greenlight

AnswerCrossword Clue
GREENLIGHTGo ahead
GREENLIGHTGive the okay
GREENLIGHTGo-ahead
GREENLIGHTAn O.K.
GREENLIGHTGo signal
GREENLIGHTGo-ahead signal
GREENLIGHT"Go" signal
GREENLIGHTGive the go-ahead
GREENLIGHTColorful go-ahead
GREENLIGHTO.K.
greenlightto give the go-ahead