Possible Clues:

• Old boy, wee gent, turns out to be dealer
• Start of brawl? Possibly we get one to come around
• LIAISON
• Leave man without sentimental liaison
• Beg to differ with fancy negotiator
• Get round old boy - fancy old mediator
• Go and gamble a little over the North in an intermediate sort of way
• Negotiator who acts as link between parties
• Start to gamble with small northern broker
• At everyone's side in the middle of nowhere, perhaps