Trailing the Pack is a phrase used to describe someone or something that is behind the rest of the group. It is often used to describe a person or team that is not performing as well as the others in a competition or race. The term is derived from the idea of a pack of animals, such as wolves, running together and the one at the back of the pack being the LAST one. The crossword solution for this term is 'LAST', which is a four letter word.