Me eyes are dim ........ I thought that I'd finished, but my wife has just pointed out that I've missed 44a, 20d and 45d - 20d:sporting contest (5) ... I have e-e-t (for eczema, edit and tern).
45d: cloth spreadon the lap of a bishop when seated during Mass (7). I have --e-i-l (from unaccustomed, leonid and tricycle).
44a: enterprising or ambitious drive (6). I have e-e-y (from teasel, epistemology and tricycle).
I must be the dimmest of all as no-one else seems to have been stumped by them.