The term DEN DWELLER can be solved by the crossword solutions LION and CUB. A LION is a large, powerful cat-like mammal that is known for its majestic mane and roar. Lions are apex predators and live in prides, which are groups of related lions that live and hunt together. A CUB is a young LION, usually less than two years old. Cubs are born with spots that help them blend into their environment and protect them from predators.