Nine clues lack a definition, seven of which appear in the grid
reformed after a thematic adjustment; the remaining two are
untouched by such CORRUPTION. All clues have an extra letter in the wordplay
15a Trumpet sounding alarm for old Nick? (7) in the grid i have
A?L??E? which may/may not be any use!
18a Old student to be situated in Greece (7) .....L?G??R?