Unfortunately the few clues I haven't managed to solve are the ones which complete the hint. so I have "...and insert in..... ", followed by something about numbers.
You will get a string of letters that appear random between 27ac and 5dn. They are not. It may help to compare the title and the final thematic clue given by last dn clues
I now have everything except the wordplay for 34 across and the puzzle's title. Although it would be nice to know, I'm not too fussed about the wordplay since I'm pretty sure I have the right answer, but a hint about the title would be appreciated.
The context for the title may be quite obscure to any non-British solvers as it is a game that's been around for a long time, featuring property dealing.