Yes, of course Neville is very clever (and devious) These Rainbow Quizzes are always a pleasure to do and keep the brain very active.
I did note the alternative spelling which threw me as well as the definition of the other part of the answer.
I've not finished yet but am almost there now.
Crossword Forum is a great site - in spite of some of the objections some additional clues are a real Godsend.