Threw in the towel yesterday after about 8 hours. Had a fresh look this morning and spotted an error in my entry for 28a - I had missed the "E" out of it!!. After a bit of jiggling about I have actually finished this masterpiece. A lot of cold solving of some difficult/devious clues required but well worth the effort of all the blood, sweat and tears. Congratulations and thankyou smidgers for this marvellous puzzle.