I received an email from Clemson University on 19th Jan 2016, it let me review the decision activity. It is a conditional admission letter. Until now, I have not received any additional email or phone call from Clemson Uni with respect to Interview or Financial Support Offer. I completed my master degree in the US, so interview only aims to students who are now in his/her home country?
I tried to contact the program coordinator, they replied me like " Financial support will be made in the middle of February", now almost the end of Feb, a little sad.
By the way, what would be your fields of specification? If you decide to enroll at Clemson University.