The oil leak needs to be really really bad from the crank seal clutch side to get to the clutch as it has a flywheel in the way, it's more likely the rocker gasket leaking on that side making its way through the gearbox and on to the clutch or the gearbox its self, unless the person who fitted your clutch took the flywheel off? and didnt reseal the bolts and it's coming through the tread or maybe your clutch pressure plate is just fubard, which does happen and it's just you crank seal is leaking at the Same time.