Many thanks, emmie and mamyalynne.
The letter spacing in this quiz is a little unusual - the setter seems to put some of the letters together in some clues and not others!
Sorry JJ09, that last bit in my answer above was for you, the spacing of the clue letters on the original quiz is a bit unusual so T SQ is supposed to give you Trafalgar Square (I hope!). It's like that on a number of clues!