Answer: dongs

AnswerCrossword Clue
DONGS

Deep tolls

DONGS

Class-ending sounds

DONGS

Bell sounds.

DONGS
Ringing sounds.
DONGS
Deep sounds
DONGSBell sounds
DONGSBelfry sounds
DONGSCathedral bell sounds
DONGSCarillon sounds
DONGSDing-... (bell sounds)