Hello, sorry for delayed reply, I had to go out.
My 1d is 'secretary,brusque, cut off fathers'. In the grid I count 24 down lights. I also count 24 clues from 'secretary' to the end. However, there's an extra between 'Omani...' and 'Subtly...' so one of those 24 is redundant, unless the clue list loops, which I discount because there's no room!
I am sure as I said that I've taken a wrong turn, so any helpful hint would be very much appreciated.