you can run without the mechanical fan, when it was off you might of noticed there was a smaller electrical fan against the radiator, when the coolant gets to a certain temperature this will turn on to provide more cooling.
there are people that just took the mechanical fan off and left the one electrical fan to handle all the cooling. most havent had problems. only way I see it overheating is if you are sitting in traffic for a while in 95+ degree weather. best course of action is buying a set of dual fans and hooking em up, this way your probably pulling more air then the original stock system.
burn out your clutch? huh? lol... it is in no way connected to your clutch which presses against the flywheel. the mechanical fan does use a clutch type device but just remove that along with the fan and your fine, just remember to put the bolts back in
