Thanks for spotting that MrCodger. I was just about to make an interactive grid and hadn't bothered to look at whether the clues matched the grid in the pdf version.
Anyway for those who prefer here's the correct grid in interactive form...
Already printed and started then saw wrong grid - bah. I already have the theme - though I will have to Google my Homer for the "summary of the conclusion"". This will be a reverse engineering job!
Prospero, a common (crossword) Stop! followed by a three-letter word of agreement, fine, with its middle letter removed. Chambers will confirm the finished word (I hope - I am out).