A little under half of the clues solved so far, no clue about the theme but the grid is starting to look relatively healthily populated, which is nice.
There's plenty left I've yet to solve, but I am particularly flummoxed by 33dn ("Short butt marred new wine (5)"), because it looks extremely straightforward in both definition and wordplay, but there seems to be an extra word in the wordplay I can't account for (and if my definition is correct, this wouldn't be an "extra word" clue). Any nudges on this are welcome!