Good puzzle with an innovative grid. Quite liked this way of entering across clues — I could perhaps have wished that the puzzle of fitting the entries had combined with slightly less obscure clues, but at least this should help quieten down the “oooh Listeners these days aren’t hard any more” brigade a little 🤣
I was stuck on the last turn like others, but spotted the intention eventually. I ended by popping two letters into a recently cleared cell.
There are a couple of parsing issues I have, though I’m confident of the actual answers. 39a “Surround office during evening of poetry” I just can’t see the office. 21d “Itinerant outlaw unloads barrel, runs ahead” I can see the definition but can’t figure the wordplay. If anyone could give me a nudge to settle my mind that would be greatly appreciated.