clutch problem

ive had a problem with something the past few weeks.i get a bad rattling when starting(stopped) out from 1st gear. when i engage clutch it seems to slip a bit(while rattling) then after clutch is engaged its fine. only does it when starting out when completly stopped. also does it when i go reverse. i have to ride the clutch in order for it not to rattle. clutch is pretty new too. someone told me it might be some teeth are messed up. anyone have an idea of what could be causing this?

You need a new clutch, sounds like the pressure plate is not clamping down on the clutch disc right. You should fix this soon.