sandydean, if you find the nickname from the clue tr1ckst3r's given you, (it's not her nickname, by the way), together with the name of the horserace, then you will find your answer.
I'm a bit late on this one but hope it may be of some help. Try John Gardner whose character was 'Boysie Oakes' a reluctant licensed to kill and his boss Mostyn.
Strange to say that recently John Gardner has written a couple of James Bond books.