Automator Delete Files

I've been trying to get to grips with Automator, but am struggling.

Is it possible to create something that automatically deletes all files in my Downloads folder at a certain time each day?

My Downloads folder gets so cluttered!

 

If I'm interpreting this right then, it means I'd need a daily event in my calendar to trigger it?

Is there a way to trigger the automator by a new file being created in the downloads folder?

E.g. Every time a new filer is created in the folder, automator runs and deletes all files that are more than 1 day old?