Answer:

berserk

Answer	Crossword Clue
BERSERK	Nuts
BERSERK	Destructively out of control
BERSERK	On a rampage

BERSERK	Frenzied
BERSERK	Violently frenzied
BERSERK	Completely bonkers
BERSERK	Crazed
BERSERK	In a frenzy
BERSERK	Bad way to go
BERSERK	Sienna
BERSERK	Frenzied.

BERSERK	In a frenzied rage.
BERSERK	Running amok
BERSERK	Bananas
BERSERK	Mad
BERSERK	Upset and then some
BERSERK	Wild
BERSERK	Foaming at the mouth
BERSERK	Crazy way to go?

BERSERK	"Postal"
BERSERK	Beside oneself
BERSERK	Out of control
BERSERK	Crazy