Just found another unfinished clue
23a lecture 6ltrs ?e?y?n
i think all my letters are correct
17a, large scale, 4 ltrs, - EPIC
1d xmas snack 5,3 ltrs - MINCE PIE
18d welsh word for Wales 5 ltrs - Cymru
3d without a thing 5,6 ltrs, -EMPTY HANDED,
hopethis all makes sense, as tobwhere I accumulated my letters, ?e?y?n