Android+Eclipse: How to clean/reset an AVD

Is there a way to 'clean' an AVD?

Can I only delete and re-create it?

This question is because I'm developing a custom layout for开发者_如何学JAVA a ListView and I can't see the update I'm applying.

I tried to uninstall the application, too, to clean and re-run it unsuccessfully.

---

When you start an AVD there is an option to "wipe user data". That option will remove any user installed apps.