A frequent business type near Seaton Clinic is Universities.
If you are hungry there are a few restaurants serving the area. Fresh produce and baked goods are available from one of many Bakeries nearby. Mail a letter or parcel through the local Postal Service. Head down to one of the Drug Store for everything from prescriptions to cold and flu remedies and cosmetics.
A handful of schools are located nearby. For food stuffs and household goods there is a Grocery Store around to provide. Visit the local Book Store. Conduct research and borrow literature from the Local libraries.