Its been a dickens of a job, but have nearly completed this nightmarish puzzle! I must say that some of the clues are tremendous, but with so many alternative threads to choose from, it's very time-consuming!
Can anyone help with these? :-
26 Down - "Clues roughened up for the solver originally show the setter can win!" (6) -R---S
24 Down . "Old flame put out" (6) E-P---
34 Across - "Chapter in St. John, maybe, one moving men to great effect" (7) ----H--
31 Down - "Car's exterior showing this off? (6) C---M- (surely CHROME?)
25 Down - "Each to come up" (5) A-E-D (surely AHEAD?)