Hmm - AJT - hope you don't mind me pointing this out but it seems to me that there are two distinct possibilities for 7A which cannot be separated until you have 1D
A bishop is a R(ight) R(everend) so I reckon the answer is 'arrish' - 'arryish' must be to do with 'arry being a jovial cockney but not sure if it's rhyming slang or not.
I'm stuck on 25ac I???E? (M to go) & 21d A?R??? (Z to go) - any hints? Thanks.