Thanks muraria.
I have 'additions' for 1a, 26a, 27a, 33a, 46a & 11d; 'deletions' for 7a, 45a, 3d, 4d & 34d. I thought I'd parsed everything else except 42d (where entry doesn't match definition, surely?) so now v confused - any further hint would be great as its driving me a bit mad (in a good way!)