Grinding along cold solving before entering anything (again).
I have a suitable answer for the definition in 22a 'Main...' but cannot nail the extra letter or complete parsing. It has 'papers' in and a single letter for academician but, of course I could have a wrong answer.
Similar problem with 10a 'Delightfully....' only in this case I appear to have an extra 'a' in the answer rather than in the clue.
In 19d am I correct in thinking that the result is worn higher than a costume?
Thanks. (Given the comments about the end game I'm close to binning this one but I'll give it one more push).