Sorry I don't remember JG. Certainly one of the last and solving it meant stacking the clue answers up and tracing a ringing method (shall we say Grandsire, though I don't remember which) though the tower. Lets say
kaftan
untrue
brandy
merino
client
taster
tomboy
shogun
tenrec
cantor
masque
oxygen
mohawk
If you trace the name of Yorkshire's longbridge through this, one letter per word, it looks like the path a bell weaves when method ringing. Though it won'r be a real method as I didn't then and don't now want to know one!!
Hope that's clear!