Thanks Chris
As i walked away from my computer, 4d dropped into my mind, then the earlier hint for 2d helped me get 2d. I suddenly saw 1d and finished the NW corner and the rest.
Some very clever clues that made me laugh, but some I couldn't fully parse :
9a, 19ac, despite my daughter having a whippet, 26ac - I don't know what a number has to do with the answer, 3d - I can't see the nap, 6d I can't see the change colour, 15d.
But I enjoyed it. FOI 10ac, LOI 8d and CODs as above 10ac and 24d plus 13d,
Back next week after having my Covid jab