More than likely you have a hyd. clutch and either the slave cylinder Mounted down at the transmission is bad or the master cylinder up in the motor compartment is bad. if it is cable operated you...
the front end load bearing or other bearing in the gearbox will be stuffed. when you engage the clutch the gearbox doesnt have any drive thru it so stops turning and then you noise stops.
need to remove transmission, sounds like a bad clutch if your goin to replace that, replace the flywheel also, but stock oem flywheels are discontinued, you could get a used one and get it resurfaced...