18a one on the bubbly left from the party
champagne ?o?i?s???
14a Performer receiving zero marks with repetitive phrases hopeless ones
d?o? ?????n?s
35d mess aroud recklessly with nitrogen in the air
n?s???d????
Hello, Oscar. I've just looked at the Jumbo for the first time and I see that 18A is two words of 9 and 9. Can you be more specific as to what letters you have and I'll see if I can work it out. Your question gave the appearance of ONE 9-letter word.