Answer:
My first is second in line; I send shivers up your spine; not quite shining bright I glitter in the light.
I am a tool for fairies.
Born of sorrow, grow with age, you need a lot of me to be a sage. What am I?
What has many keys but can't open a single lock?
The more you work, the more I'll eat.You keep me full, I'll keep you neat. What am I?
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.