I have most answers but don't quite understand the reasoning behind them..
48A Worked in a particular field,like unsuccessful
examinees?(8) P-O-G-E-. Ploughed?
9D One in severe ignorance initially supporting graduate teacher(9). M-H-R-S-I. Maharishi?
28D Organ part produced by churchwarden after audible complaint? (4,4) -L-E, -I-E. I initially had Clay Pipe but have gone wrong somewhere if 32A is Stablemate.