Possible Clues:

• Crafty, like Family man Stone
• Robbie's partner in reggae rhythm
• Disingenuous
• Doing things in unpleasant and secret way
• Underhanded Massive Attack song?
• This could not necessarily be added to the needles
• Murder after a loss is crafty
• Could be Stone, could be Dunbar
• Crafty, as a fox
• Sneaky Scorpions song