G'day Lanny.
Re your smoke concerns.
It's hard to tell without seeing the vehicle, but as suggested could be the timing, OR poor injector nozzels, dirty fuel filter, or even dirty fuel. (A certain bacteria actually grows in diesel and can cause major problems.) I'd put a quality diesel additive that kills bacteria in for a few tanks. Can't do any harm. Get it from Autobarn etc.
Either way, if your dealer doesn't fix it, and it's not covered by warranty, you need to see a good diesel mechanic.
Diesels don't blow white smoke when healthy!

Re ? clutch noise:
You could check the manual linkage which may need adjustment, or the valve body could be faulty.

Re turbo engagement.
If your vehicle is a 2.4, it should engage around 2300 RPM, ( a 3L will come in earlier) and it will stay on after this RPM has been maintained. You just won't hear it spinning up to speed (turbo whine.)
The engine turbo light will stay on.
This is what it's supposed to do.
You won't 'over rev' the turbo as it's got a waste gate fitted to bleed off excessive exhaust gas.
Sorry mate.
No quick fixes here. I suggest you ensure that the dealer services the vehicle correctly, as your smoke problem could be a worry, as is the transmission noise. If in doubt, get someone else to work on it.

Best wishes.

Ken.