Have finished the puzzle with the exception of 4d which I cannot get, I am suggesting another title for a particular leader always assuming leader is the definition. Can't parse it or 22a/22d, again assuming the def's are student & paper size for which I have answers.
Thanks.
Do you think 16D works? - "Do you understand one daughter is lacking change?" - I have EDIT ( def = change) - assume wordplay = GET ID with spare G - but lacking?