I think 1ac might be BEST MAN, but can't see why:
He probably knows a South American footballer, missing centre-back, white clothes (4,3) ??S? M?N
As for 1d(13), I have STEPMOTHER for the second half, but can only thin of Cinders, which doesn't fit:
Musical put on stage to nurture traditional character (6,10)
??C?E? STEPMOTHER