The crossword solution for the term 'Busy Colonist' is ANT, which stands for a small insect that is known for its hardworking nature. Ants are often seen as a symbol of diligence and industry, and they are found in many different habitats around the world. They are social insects, living in large colonies and working together to build complex nests and forage for food. Ants are also known for their ability to carry objects many times their own weight, making them an ideal choice for the term 'Busy Colonist'.