There will be a curriculum you will be required to follow but that doesn't restrict you from adding your own contributions. A clinical instructor doesn't always have the luxury of picking their patients problems in the area you will be sent so your students will have a variety of patient problems to handle. With your years of experience I will assume you have already dealt with students. I recommend you start with clinical instruction until you're comfortable enough to take on a classroom. Universities conduct orientation classes you will be required to attend. These classes will pick up where your graduate school left off. Teaching strategies, how to deal with difficult students, etc are just some of the topics that will be covered. This web site is an excellent resource for the questions you will have. Good luck with your new career!