Hi currently have an older 10 speed Campagnolo Record group set with 52/39 cranks. I would like to get a compact group set. I can't get an equivalent 10 speed compact cranks now but I can get an 11 speed set. Can I use 11 speed crankset with the remainder of my 10 speed group set?
Yes, that should work fine. It's typically everything but the cranks that cause shifting incompatibility issues. You will need to shorten your chain.