Thinkerbell, welcome to the world of student loans!! This is a long and involved process, and it's important for your son to know what's going on as he'll be the one on campus dealing with the financial aid office.
The first thing you want to do is contact Clemson's Financial Aid office. Call them, don't email them, and ask them to walk you through the process and the options step by step. This is extremely important -- you won't regret it. They will be able to answer just about every question that you have about federal student loans. They will also have financial aid deadlines that are particular to the school -- these are very important to know and stick to (make sure to ask them about their deadline for you to fill out a FAFSA form -- this is a government form that determines how much financial aid your son is eligible for, and schools usually need the results of it around March). Should they not be able to answer all of your questions, Google "federal student loans" or "college financial aid" and you should come up with some very helpful websites.
Be prepared for several hours of research to truly understand what's going on with student loans, and don't ever be afraid to contact the Clemson Financial Aid office, or your lender (eventually) with questions. They're there to help you, and understanding the process is important. I'm on the phone with my lender all the time making sure everything is A-OK.
Now that I've scared you, let me just say that just about every student has to go through this -- they've seen and heard everything. The bottom line is: your kid's going to get a great education and this is a very small hurdle to jump in order to reach the finish line. Take a deep breath, relax, and jump in.
