Answer:
What is it that you must give before you can keep it.
A house of wood in a hidden place. Built without nails or glue. High above the earthen ground It holds pale gems of blue.
I fly through the air on small feathered wings, seeking out life and destroying all things.
Gets rid of bad ones, short and tall. Tightens when used, one size fits all.
There are two meanings to me. With one I may need to be broken, with the other I hold on. My favorite characteristic is my charming dimple.
Both a currency and an antlered male. What is it?