The term 'Tag Along' can be summarized as an action of accompanying someone or something. It is often used to describe a situation in which one person follows another, usually without being invited. The crossword solution for this term is 'COME', which implies that the person tagging along is joining the other person or group without being asked. This phrase is commonly used in social situations, such as when a friend invites someone to join them on an outing or activity.