Question Author
Thank you for your answers-especially to Grasscarp for taking the trouble to look on the back of a tube map. I had already done that, and come up with the same conclusion, there are only four 7, 6s to choose from. To make things worse-I think the "shape" clue points to the word square in the answer to no 6 which would probably leave clapham common for no 36, and I still can't see a connection with Nick if that is the answer, unless there happens to be a jail at Clapham, and nick refers to being "in the nick"
Do you think Grange Hill is correct for no 43 please?