Answer:
I know a word of letters three. Add two, and fewer there will be!
Always wax, yet always wane: I melt, succumbed to the flame. Lighting darkness, with fate unblest, I soon devolve to shapeless mess.
Long legs, crooked thighs, little head, and no eyes.
Used on a diamond and left on a board. It's great for a gymnast his grip to restore. What is it?
Steals an event or even a mood. Reveals the truth or shatters it.
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.