This is a UK-style cryptic crossword; if you are unfamiliar with this puzzle type, the Wikipedia page is a great place to start! Very mildly thematic, this one. Hope you enjoy!
Nice pangram! I don't see how the wordplay for 35A is instructing you to take the O from envoy (on the surface it feels like it should be operating on jealousy), and for a while I had 3D transposed. I'm slightly dubious of 31D, as I feel the contraction is simply for the surface