Anthracite burns clean enough to use in a pizza oven. If your neighbor told you he was going to install a new furnace and offered you the choice of it burning wood pellets or anthracite, from a smell standpoint you should absolutely choose the anthracite.
Anthracite, in these regards, is very different from bituminous coal.
Undoubtedly. Doesn't change the fact that one kind of coal burns smokeless with a clean blue flame while the other will cover everything for miles in a film of soot and tar.
The smell of wood might be nice for flavor, but that's beyond the point of anthracite being clean. That particulate pollution from wood burning is severe compared to the smoke you'll get off anthracite, which is virtually nonexistent.
Regardless of how good it might be at being the cleanest dirty thing, it's not what the US trope of "clean coal" refers to anyway. Anthracite is not used in the US to generate power because it is too expensive.
Anthracite, in these regards, is very different from bituminous coal.