The crossword solution for the term 'Followed closely, as a dog' is 'Heeled', which is a six-letter word. Heeling is a behavior in which a dog follows closely behind its owner or handler, usually with its head and body parallel to the ground. This behavior is often seen in obedience training, where it is used to keep the dog close to the handler's side. Heeling is also used in agility and other canine sports, as well as in everyday life.