Asking for help with noise (clutch) diagnosis

[Duff]

I have developed a mechanical (clanking) sound that seams to be coming from the clutch area. It has gotten gradually worse over the past few weeks and is now fairly loud at idle. It sounds like the something doesn't completely disengage when the clutch is in, It's kind-of a metalic rattling/tapping sound.

It only happens when the clutch is depressed at idle and gets louder and more consistent after the car is driven and heats up. (barely noticable at start-up). The clutch engages and shifts fine and there is no sound while in gear.

When detailing the car over the winter, I noticed fluid aroung the slave and the reservior was slightly low. I never noticed the sound until I topped off the fluid.

Based on what I've read, I believe the slave is going bad, so I am going to replace it anyway, but my question really is, would a bad slave cause the sound I'm describing by not completely disengaging the clutch? I don't feel any pull when stopped.

Any help is greatly appreciated