The only drain cleaner that will clear this is called, "a plumber". Do not pour chemicals into the drain, they not only will not work, they will cause a hazardous condition for the plumber you eventually will have to call. Even if you find a chemical that will seem to clear the wax, it will settle in the drain deeper and will just make the problem worse. I won't even ask how the H##l you got candle wax in your drain.