The best cleaner for carbon is good old water
After that you can of course treat the surface with many different things as some of the above comments show. We always recommend dry-film PTFE spray as this is very easy to use and will provide a safe and non-sticky protection.
We cannot recommend using a oil based PTFE enriched lubricant such as GT85 or WD-40 as these are designed to be penetrating and could cause de-lamination of the carbon fibre material. If you speak to any of these lubricant manufacturers they will tell you the same thing. They also can cause the failure of bonding agents used to stick the clamps to the pole.