Answer:
In buckles or lace, they help set the pace. The farther you go, the thinner they grow.
I am the greatest teacher out of them all, but alas in the end I kill my pupils.
I am always hungry, I must always be fed. The finger I lick will soon turn red.
My first master has four legs, my second master has two. My first I serve in life, my second I serve in death. Tough I am, yet soft beside. Against ladies cheeks I often reside.
What does no man want, yet no man want to lose?
I can only be played on a windy day