The crossword solution for the term 'Small Six-Footer' is ANT, which is a three letter word. Ants are small insects that measure about 6 millimeters in length, making them one of the smallest creatures on Earth. They are social insects and live in colonies, with some species having colonies that can contain millions of individuals. Ants are found in almost every habitat on the planet and play an important role in the environment by helping to break down organic matter and aerate the soil.