I was just down by Clearwater last month! We stayed in Indian shores which is maybe 20 minutes away and rented a condo (Sand Castle condominiums) for a week. Clearwater is very pretty area. If you guys like Seafood , check out Cooters restaurant and bar in Clearwater. Mondays and Tuesday's they have all you can eat crab legs and they are phenomenal!
I live here in St. Pete, about 30 mins from Clearwater look at the sand pearl resort.....it's beautiful and in the middle of all the Clearwater beach action. If you're into the beach bar scene, go to Shepard's one day, they have live music and a seafood buffet that's really good! Also definitely make your way to Downtown St. Pete one day. There's beautiful waterfront, trendy restaurants and bars and always something going on.
I also live in the area and while Clearwater is beautiful and with lots of fun things to do, be warned it's always PACKED and BUSY! So, if you're wanting a more low-key, relaxing beach honeymoon, you may want to check out somewhere else along the Gulf coast.