Answer: aprilfools

AnswerCrossword Clue
APRILFOOLS

End of the announcement

APRILFOOLS

Some annual victims

APRILFOOLS

... Day.

APRILFOOLS
A day for funsters.
APRILFOOLS
Victims of a kind.
APRILFOOLSSeasonal saps
APRILFOOLSSpringtime dupes
APRILFOOLSAll-day suckers?