I've been looking at the Anisotropic node along with anisotropy in the Pricipled BSDF node and the new hair node. The hair node is borked as of right now. Until it gets fixed I can't start using it and figuring it out. What I did find out is that anisotropy works if you plug in a tangent node into the tangent port on ABSDF and PBSDF. I think the tangent node is borked right now as well because it doesn't have any adustability that seems to have any effect on the anisotropic nodes output. So here is my latest workaround for renders till we can make something better. have a look.

W10, Ryzen 5 1600x, 16Gb,RTX2060Super+GTX980, PP11, 11.3.740