| Mastermind |
| Crime boss |
| Chief plotter |
| Head of a gang |
| Chief mutineer. |
| Gang boss, e.g. |
| Head of a cabal |
| Chief instigator? |
| V.I.P. in plotting |
| Chief troublemaker |
| Gangbuster's target |
| Sting target, maybe |
| Criminal mastermind |
| Law enforcement target |
| Spark plug, so to speak |
| Mischief-making mastermind |
| Boss at the jewelry store? |
| Pioneer where boxing is played? |