Muraria, you've got the right entries - and there can be a P for UPTOWN, it comes down from 16ac. I also got held up by 'crore' before i found FRERE.
The across entry at 29ac is a compound word regarding fashion trends.
I wouldn't bother too much about 28ac until you really have to - I thought it was the most obscure answer of the lot, it's a two word phrase and i really had to look carefully at the Chambers entry to see it.
Good luck.