Crossword Clue:

End of class signal

AnswerCrossword Clue
BELLEnd-of-class signal
THINKERBELLSignal at the end of philosophy class?
BELLEnd-of-round signal
PLAYTHESWANSONGSignal the end
ROLLTHECREDITSSignal a show's end
TAPSBugle melody to signal day's end
GONGSignal for an act to end