Answer: dustbunny

AnswerCrossword Clue
DUSTBUNNY

It doesn't hop

DUSTBUNNY

Vacuum cleaner clogger

DUSTBUNNY

Critter under the bed?

DUSTBUNNY
Bit of dirt
DUSTBUNNY
Under-the-bed clump
DUSTBUNNYOne may be under a bed
DUSTBUNNYSign of an indifferent homemaker
DUSTBUNNYWhat a parent may think is under the [puzzle's central image]
DUSTBUNNYVacuum's target