The Prayer Tutor can be found In Lumbridge at the Prayer altar in the church, East of lumbride Castle.
You must at least have 40 crafting level to enter.
you need level 41 crafting you need level 41 crafting you need level 41 crafting
You get crafting experience.
Make things.
from the dunginering tutor
depending on your level, there are some crafting flaws, you will lose money, if you are a low crafting level, try flax
Crafting Water Runes.
if your talking about construction delite the table and rebuild it as a upgraded crafting table
Craft things....
Gold, silver and clay.
Yes, you may use a crafting potion to create the lyre, this potion raises your crafting by three levels.
There are crafting stores all over, mostly in cities. Look at the world map to find some.