Decayday

1 clue
Halloween, to a dentist?
Similar answers:
Adecadeback
Afoggyday
Afoggydaytripper
Aidedecamp
Aidesdecamp
Alldayeveryday
Anotherstormydayifear
Anyday
Anydaynow
Arainyday
Babydecaf
Befiredeveryday
Betadecay
Bismuthbemyluckyday
Busyday
Byday
Cheershappydays
Chemicallydecay
Cremedecacao
Daddydaycamp