Came to this late, and have a couple left. 21d Naipaul's House man, twice overlooked (6) ending in S 22a Spoilt batik, missing out black in dyeing process (4) ??A? 27a Wilts - high ridge in the shires? (7) ??T?E?S
I think 27a is WITHERS - it's an alternate meaning for WILTS, and also it's a term for the top of the back/base of the neck on horses/cows/sheep, etc., so presumably it's used a lot "in the shires"