Some questions answered:
How long does it take for the pattern to be delivered? Once your payment goes through, you'll be able to download the pattern immediately, print it at home, and get started.
How long does it take to make one clutch? This definitely depends on your sewing experience, but allowing two to three hours should be plenty of time.
I'll also be putting a few "hardware kits" in my shop which include the pre-cut faux leather pieces for the corners and zipper pull, as well as the metal zipper. You can definitely find these things outside of my shop (and cut your own faux leather), but I thought it may make things easier to have them cut and sent to your door. I'll also be selling full kits - fabric, hardware, pattern and all - in the very near future.