Nice! Took me a while to spot my mistake - I put SADNESS rather than the actual correct answer for 18A, and then I had to look through the whole thing again to make sure I didn't make a typo somewhere! Then I noticed my anagram wasn't correct and realized there was a better fit.
One other small issue to fix - your clue for ENNUI doesn't quite even out properly (there's two letters between the U and I).