Answer:

mongoose

Answer	Crossword Clue
MONGOOSE	Nemesis of a cobra
MONGOOSE	Cobra-killing carnivore
MONGOOSE	Kipling's Rikki-Tikki-Tavi

MONGOOSE	Cobra predator
MONGOOSE	Cobra killer
MONGOOSE	Rikki-tikki-tavi.
MONGOOSE	Cobra adversary.
MONGOOSE	Ferretlike animal.
MONGOOSE	Rikki-Tikki-Tavi.
MONGOOSE	Ferret's cousin
MONGOOSE	Mammal with a birdlike name

MONGOOSE	Cobra's nemesis
MONGOOSE	Ferret look-alike
MONGOOSE	Ferretlike carnivore
MONGOOSE	Kipling's Rikki-Tikki-Tavi, for one
MONGOOSE	Animal in a Kipling story
MONGOOSE	Cobra's foe
MONGOOSE	Cobra fighter