I'm grateful r this exchange as it enabled me to complete a few more, but I'm still held up in that area :
what, pray is :
15A - She come about in broad Nile Mouth (7)
M???N?A
& (while I'm at it)
25A - Trouble's over? Dad calls for drink! (4, 3)
D?D? P?P
I fear some of the letters cited may be erroneous