I've got a big black hole in the top right corner & could do with a kick-start!
4a, Value of property? About one million (8)
13a, Trim place for quartet in composer's dance (10)...
3d Having entire correspondence translated to aid client (9) i?e?t?c?l Is it identical? anag aid client, if so why? 24a Art deserving pledge (7) e?r?e?t Is it earnest = pledge? if so why....