That depends on the color of the smoke. If it's white smoke, then you probably have a problem with the manifold gasket. Blue means it' burning oil. The "clear fluid" is probably just condensation from the air conditioner or the tail pipe.
Smoke: A engine oil or tranny fluid or lower steering fluid LEAK. Steam: A water leak.
Smoke from the radiator would be do to a leak evaporating off of it. Find the leak repair or replace necessary parts.
Green fluid is usually an engine coolant called Ethelyne Glycol. The smoking is probably caused by it leaking onto hot parts of the engine and evaporating.
Look for a leak, if not white smoke from exhaust (going into engine)
transmission cooler
transmission leak in reverse only
Depends on the color of the smoke:light blue/white sweet smelling smoke, a coolant leak into crankcase.dark black smoke, an oil leak into the cylinders.etc.Check with your mechanic.
Must be transmission fluid leak somewhere, and it's getting fluid on the exhaust. I'd be looking at the lines to the cooler first.
Bad seal or excessive internal pressure
seal. expensive
Bad seal? Bad cooling line to radiator?
This is being caused by some fluid on the engine. You could have an oil leak somewhere and that is what is causing it to smoke only when the car gets turned off.