Welcome to this fine state!! I think you will really enjoy your time here.
I hear good things about the PPS and I find them appealing myself. I bit too expensive for my taste but I wouldn't mine having one.
Just a couple things about TN
1) In TN it's called a Handgun Carry Permit(HCP). It is not a CCW permit because you can carry either openly or concealed. Your choice.
2) To obtain a permit you must take a class, you should have plenty of options near Clarksville. The class usually ranges from $65-80 depending on where you go. Then you must go to the DMV and pay $115. After that you must go get fingerprinted which is included in the cost of the permit, and then you must pass the background check.
Wait times are currently very short. You could probably get your permit within a month after being printed. I'm not sure what your options are in Clarksville but you can probably go get printed at UPS if there is one near you.
3) This is a great group of people on here and most would bend over backwards to help you out. Enjoy your stay and don't be afraid to ask questions!
Welcome!