I finally staggered home without using hints. It was certainly the hardest puzzle for a long time, and I am still not convinced about the wordplay in 13a, though crosschecking seems to make anything else impossible. I can see the type of blood but not the small drop, unless it refers to a drink which is often far from small, and particularly after a hard day staring at a grid.
The code was easier than I thought it would be, but not aided by one of the pertinent websites which opted to mis-spell 10ac. However, I had at least heard of the thematic items, though I fear that my chance of sampling any of them in the coming twelve months may be stymied by safety measures and our decision to commit international suicide in 2017.