"Woof!," e.g. (4 letters)

Origami design (4 letters)

Watchdog's warning (3 letters)

Sharp-clawed critter (5 letters)

B.S.A. activity (4 letters)

Howl at the moon (3 letters)

Titi or sapota (4 letters)

Having cracks and crevices (6 letters)

Tree trunks (5 letters)