thanks chiff and all, but am having a thick day and still can't get my last four
37D: large bill with one round right on bottom (9)
p???e?i??
43D: man put on unfinished light-coloured Indian slippe (7)
??a?p??
54a: FLOW OF WATEWR TAKING ORIGIN FROM BORE (4)
???? COULD IT BE TIDE OR WAVE, IF SO WHY?
Also 42A as previously.
I would be sooo pleased to finish this and get on with my day!