Didn't start this week's until last night due to travel and I'm maybe one third of the way in, finding this one pretty tricky.
I could ask many questions, but here's one that's slightly worrying me...
27ac: "To sum up, taking cocaine, the thing he loves"
I have a potential solution that fits with the wordplay, using the last word as definition with a modified letter as per preamble—and it fits with what I have in the grid (the middle two letters are filled, and no others are; those two match up).
The disconcerting thing is that it would fit without cycling, despite having modified the definition. I solved this one without noticing the crosses, so it's not a case of my solving towards a particular answer. But I must be doing something wrong, whether it's the wordplay, definition, or misapplication of the thematic rule.
(As a further complication, the way in which I modified the definition was because it looked like a good letter to end up with based on the three preceding "corrections" as well as the one following.)