Means of defense for an elephant

TUSK

"Hint: "Ivory weapon on a large mammal." This hint keeps the focus on the elephant's natural feature while subtly pointing toward its material (ivory) and function (weapon), making it easier than the original clue but still requiring a small leap to reach "TUSK.""

The clue "Means of defense for an elephant" leads to the answer "TUSK" through a straightforward definition. An elephant's tusks are elongated incisor teeth that serve as tools for digging, lifting, and—importantly—defense against predators or rivals.