MJH78

ive heard of flywheel chatter, but not real sure if this is what my car is doing. if I bog down the motor a little, say I'm cornering in 2nd gear and come out of the corner at a pretty slow speed and then accelerate slowly, ill get this clattering noise from the engine bay....it is very noticeable too.Once I get the rpms up a bit, the noise is gone. Is this a worn or loose flywheel? any thoughts?