Somthing to do with the AC.
The clutch assemble is shot...
Yes
If it's a creaking noise then it is most likely that your compressor is broken.
this is caused from piston to cyl wall clearance when engine warms up the pistons exspand and the noise is less. DON'T WORRY ABOUT IT
A/C compressor? A/C compressor?
The A/C system compressor operates when in the defrost mode. If the noise is also heard when running the A?C it is more than likely a problem with the compressor/pulley.
Compressor is unbalanced as the rpm's drop.
start by checking a/c compressor.
Spark plugs do not make a noise of any kind unless one or more is not fully tightened. Remove and replace all plugs and torque to proper specs. Are you referring to pinging or lifter clatter? If you are hearing the lifters clatter, then have the valves adjusted. If you are referring to pinging, then try a can of Seafoam Engine Tune in a full tank of fuel.
I need to know the type of compressor (make) before I can answer that question.
it makes that clicking noise because you touch yourself at night
Broken fins in the fan or a bad compressor. Or leaves and sticks stuck touching your fan for the ac side (assuming you have a separate fan for ac which you might not).