Of course there are. Slightly nicer clothes can be bought from a few different places, namely the Port Town shop, the Starboard Town inn, and the Tavern. But if you want really nice clothes, you're probably going to have to have the Blacksmith in Port Town make them. As long as you bring her the materials, she'll make all kinds of clothes for free.
First you'll need fiber; for newcomers this can be a bit tricky to get your hands on. Fiber plants can be found growing in random places in the wilderness. All it takes is a bit of exploring to find one; they look like small trees or bushes. This fiber can also be re-planted to grow more, but you'd better be careful if you don't want anyone stealing it from you.
At this point you can make white clothes, but if you want some color you'd better get some dyes, which can be found in the following places:
- Green - Woods
- Cyan - Swamp
- Yellow - Auric Fields
- Blue - Blue Hill
- Brown - Level 1 (located in Woods)
- Purple, Black - Volcano
- Red - Red Crater
If you need help finding any of these places, feel free to refer to
the map.
Now, there are two ways you can use these. One, you can have the Blacksmith make special cloth types with these, and then make clothes out of those. Two, you can make plain white clothes and combine them with dye to color them. You can mix your own colors of dye from ones you have, too, which can be helpful if you're dying your clothes directly. Be careful you don't accidentally
use a dye, as it will color your hair instead. This can be undone with bleach if you don't want dyed hair, but it's kind of a pain so pay attention.
I hope this has been helpful.