To creature clothes, they are crafted, so you need the right blueprint in the right blueprint-book, then take the book and material for one or more (preferably more) to a crafting-terminal.
I could add, if you want to hunt for the materials yourself or get raw materials, this is what you need:
- Tailoring vol 1 blueprint book
- Basic shirt and/or Basic pattern pants blueprint
(Those two you get from "Technichan" ingame. When you got the book and the BPs, they're 1 pec each so you can aswell buy both, put them into the blueprint book.)
As for materials, this is what you get when refining the raw material:
1 generic leather = 3 animal hides
1 wool cloth = 3 wool
1 fine textile = 3 fine wool
1 mollsk enamel button = 3 molisk teeth
Check in the blueprint how much you need of each.
There are also cloths like "Merp wool cloth", those you get from refining merp wool and so on. Also special cloths like "Cold textile", those are crafted and not refined.
Note that when crafting, most attempts will fail, so if you "guaranteed" want to craft something you need materials for at least 3 tries (even that don't give any guarantee).
Also that the items you make usually don't have full TT; so putting in 2 iron ingots, 2 belkar and 1 melchi crystal in crafting machine to make Jester D1's won't be a "profit machine" that gives full TT ones worth 4 ped on each "click" from two ped worth of materials.