1. A yashmak for a pixie perhaps. 2. Elementary 212 - eh! 3.Could be a great big stop on East London. I have possible answers for these but am far from certain. Many thanks.
No I don't think so but the London Overground stations are printed on the tube map. I was not very happy with Wapping anyway because it doesn't totally parse the clue.
Yes I know but the East London line is part of the London Overground.As for Mile End well I have got that for another answer which is 100% right not that that necessarily precludes it. Also not quite sure where "mile"comes into the clue.