One suggestion is a
It's a kind of a change.
Many types of change can be called a break - say a break in a voice or the weather.
It's a kind of a chance.
It could be say a lucky break.
It's a kind of a run.
A team making a break for it in football when running forward. Also a run of scoring in snooker.
It's a kind of a dance.
It's a kind of escape.
A prison break or escape from a situation.
It's the start of a game.
In snooker/pool, you would break the triangle of balls to begin.
Yet from middle to end, it stays somehow the same.
Move the middle letter to the end and it still sounds the same (BRAKE)
Title: A Riddle For a Fast Day Away
May compound break to make - breakfast, daybreak and breakaway
Extra fun - or homework for not getting all the first clues!
When it's up then it's sad: to the French c'est dommage. - Breakup
When it's down then it's time to go find a garage. - Breakdown
When it's through, it's a triumph! The news is a-buzz! - Breakthrough
When it's in, it's illegal so call for the fuzz. - Breakin