| Peon |
| Tooth |
| Sprocket |
| Underling |
| Gearwheel |
| Gear part |
| Small part |
| __ railway |
| Gear piece |
| Gear wheel |
| Minor part |
| Slip a ___ |
| Gear tooth. |
| Metal tooth |
| Wheel tooth |
| Lowly worker |
| Minor member |
| Gear feature |
| Machine gear |
| Minor worker |
| Minor player |
| Machine part |
| Gear sprocket |
| Unsung worker |
| Key underling |
| Certain tooth |
| Turning tooth |
| Machine tooth |
| Kind of wheel |
| Toothed wheel |
| Gear component |
| Important part |
| Necessary part |
| Wheelwork part |
| Minor employee |
| Rotating piece |
| Machinery part |
| Gear projection |
| Gear with teeth |
| Machine's tooth |
| Tool of the Man |
| Tooth of a sort |
| Tooth on a gear |
| Type of railway |
| Kind of railway |
| Part of a wheel |
| Gearwheel tooth |
| Slip a ___ (err) |
| Subordinate sort |
| Tooth on a wheel |
| Mechanical wheel |
| Mechanical tooth |
| Tooth that turns |
| Minor functionary |
| Not-so-big wheel? |
| Part of a machine |
| Gearwheel feature |
| Part of the works |
| ___ in the machine |
| Hardly a big wheel |
| Interlocking piece |
| Part of a sprocket |
| Part of the system |
| Piece in a machine |
| Piece of machinery |
| Subordinate person |
| Tooth in a machine |
| Meshing is its job |
| Bump in the machine |
| No big wheel at all |
| Part of a gearwheel |
| Minor yet vital part |
| Tooth on a gearwheel |
| Tooth on a gear wheel |
| Tooth that won't bite |
| Tooth on a metal gear |
| Caterpillar wheel part |
| Gearwheel's projection |
| It keeps things rolling |
| Small part of the works |
| Small part in a machine |
| Machine part with teeth |
| Minor but essential part |
| Minor but necessary part |
| Organization functionary |
| Small piece in a machine |
| Minor player, so to speak |
| Torque-transmitting tooth |
| Little fish in a big pond |
| Individual tooth on a gear |
| Slot filler in a gearwheel |
| Lowly worker, figuratively |
| Slip a ___ (make a blunder) |
| Small part of a big machine |
| Minor player, metaphorically |
| One with evenly spaced teeth |
| A small ... in a big machine |
| Little man in a big business. |
| Little piece of a big machine |
| Rotational motion transmitter |
| Tooth not examined by a dentist |
| Small worker in a big organization |
| Proverbial minor-yet-important-part |
| Important but sometimes ignored piece |
| ___ railway (mountainside track, sometimes) |
| Tooth with gaps between it and its neighbors |
| Minor worker in a large company, figuratively |