Big thank you to Maskarade for the puzzle and to Jono for supplying the interactive grid.
Couple of parsings still elude me (normal clues)...
39a - Just over half the mixture is sprayed with tear gas (5) MACED
Obviously it's "sprayed with tear gas", but why?
61a - Olympic venue with watering hole about to entertain billionaire (9) BARCELONA
I get the 'Olympic venue' but that's it.