Like the guys said, if you declare facts that aren't 100% accurate it's fraud and you may find that they won't cover you in the event of something happening.
Having said that, being creative is something most people do to an extent, look at having another (experienced) driver on like a parent, even if they're unlikely to drive it much, look at excess (although you'll have to pay it so that one could come back to bite you). Employment can be a huge problem - if I register as a weather forecaster, a civil servant an MoD employee or someone that works on a military instalation I get four VERY different quotes (oddly, only one group noticed that the car was kept in a secure area - armed guards and all that). All are true, for a given value of true.
Addresses are probably the main worry, if it's insured at your home address and it gets broken into at uni you might get grief from the company, but look into policies where you can have the car at a different location, although that in itself can drive up your premiums.