The term 'Track Supporter' can be summarized as someone who provides support for a track or running team. The crossword solution for this term is 'TIE, ' which could refer to the type of clothing worn by a track supporter, such as a TIE-dye shirt or a team TIE. It could also refer to the idea of being tied together in support of the track team, as a track supporter would be expected to provide encouragement and assistance to the team.