Answer: practicaljoke

AnswerCrossword Clue
PRACTICALJOKE

TRICK

PRACTICALJOKE

April first activity

PRACTICALJOKE

April Fools' Day prank, perhaps

PRACTICALJOKE
Trick
PRACTICALJOKE
"Gotcha!" precursor, perhaps
PRACTICALJOKEPrank.
PRACTICALJOKEUseful humor?