There's one in Al Kharid and in Rimmington.
There are crafting stores all over, mostly in cities. Look at the world map to find some.
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.
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.
There is a crafting store located in Al-Kharid. (Don't forget the 10gp to get through the gates if you come from Lumbridge. If you come from the North, it is free.) There are crafting stores located around Runescape or you can go to the Crafting Guild. To enter the Crafting Guild you must have level 40 Crafting and a brown apron. The Crafting Guild is located in Central Asgarnia, just South-West of Falador. there are many ways to acquire this item, it cannot be player made however it is sold at many general store and crafting stores, it is dropped by some enemies too, you can access it from the crafting shop in al kharid, the gate toll cost 10gp, if you do prince ali rescue the toll is free. You can also go to the Grand Exchange and buy from there.
if your talking about construction delite the table and rebuild it as a upgraded crafting table
Gold, silver and clay.
Craft things....
Yes, you may use a crafting potion to create the lyre, this potion raises your crafting by three levels.