For the starter issue, is the sound more of a screech than a grind?
Could be two things,
1 - If it is a grind noise - the starter pinion gear may be sticking with the flywheel ring gear, therefore it is not retracting quick enough.
2 - If it is a screech noise - this was happening to me - check out your alternator belt tension and the belt itself. I changed the belt on my car and didn't tighten it enough. Everytime I would start the car for the first time in the morning it would screech when the engine fired. Just tightened the belt a couple of turns and it never came back.
With your clutch pedal issue - check for leaks from the hydraulic circuit.
change your brake fluid and bleed your brakes and clutch. See if that helps. It could just be that the clutch slave cylinder has failed. They usually last 10 years.
Hope this helps, Nick