I’m a small burst of happiness, often sold by the piece; A rebel of reason that hurts waistlines and teeth. I vanish too swiftly, though long I’m pursued, A wrapper of promise, temptation renewed.

Without my first, I'm right behind The above word wouldn't be allowed by my first three letters here I'm plain and boring, I might be on your screen and you probably haven't noticed

Flakes fall Settled dust Gone with the wind Not of a season, but of a seasoned person

temptations call, my will fights them all. I avoid some things, deliberately abstaining, for example, someone who keeps Kosher or Halal refrains from pork. this word lacks often use, it's almost like people do it to itself.

Sworn before steel was drawn, I bind with breath, not chain. Unseen, yet kings have bowed to me. Break me, and wars are born. Keep me, and lives are steered. Forged in a moment, I outlast men.