Answer:

actup

Answer	Crossword Clue
ACTUP	Malfunction
ACTUP	Misbehave
ACTUP	Go on the fritz

ACTUP	Do as toddlers do
ACTUP	Be bothersome
ACTUP	Be naughty
ACTUP	Get out of line
ACTUP	Make a scene
ACTUP	Be bratty
ACTUP	Carry on
ACTUP	Behave rudely

ACTUP	Behave willfully
ACTUP	Earn a time-out
ACTUP	Be a brat
ACTUP	Cause a ruckus
ACTUP	Cause trouble
ACTUP	Behave badly
ACTUP	Throw a tantrum, say
ACTUP	Behave poorly

ACTUP	Fuss
ACTUP	Throw a tantrum
ACTUP	Turn unruly
ACTUP	Step out of line
ACTUP	Turn impish
ACTUP	Behave in an unruly manner
ACTUP	Turn naughty
ACTUP	Put on a scene: 2 wds.

ACTUP	Throw a tantrum.
ACTUP	Misbehave.
ACTUP	Be fractious.
ACTUP	Be fractious: Colloq.
ACTUP	Be refractory.
ACTUP	Misbehave: Colloq.
ACTUP	Behave playfully: Colloq.
ACTUP	Make mischief.

ACTUP	Carry on.
ACTUP	Show off.
ACTUP	Cut a caper.
ACTUP	Behave obstreperously.
ACTUP	What brats do

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.