| TRANSFORMER | Electrical equipment for increasing or decreasing voltage (11) |
| LETTINGUP | Rental increasing - or decreasing (7,2) |
| ACCELERATOR | An atom-smasher, catalyst, cyclotron, muscle, synchrotron, throttle or other device, substance or thing for increasing speed (11) |
| ALTERNATORS | Those who take turns to produce electrical equipment (11) |
| BOOSTER | A device for increasing electrical power or voltage |
| BEE | Bring electrical equipment primarily for Rimsky-Korsakov's buzzer (3) |
| STILT | Prop for increasing one's height; or, a piloti (5) |
| BUILDINGSOCIETY | Institution for increasing the general population or just their finances? (8,7) |
| BAKELITE | An early form of brittle plastic used for electrical equipment (8) |
| WIRES | Sends an urgent message for electrical equipment (5) |
| ROTATIONOFCROPS | Revolutionary system for increasing the harvest (8,2,5) |
| CIRCUIT | Beat piece of electrical equipment (7) |
| CRIMEWAVE | Women pursuing one setter in desire for increasing bad behaviour? (5,4) |
| TIMESWITCH | Device operating electrical equipment remotely (4,6) |
| CURRENT | Running costs of electrical equipment? |
| ADAPTOR | Electrical equipment: ___ die? (7) |
| SPOT | Electrical equipment used on location? (4,5) |
| INDIANCLUB | Bottle-shaped device for increasing shoulder strength/flexibility (6,4) |
| SUPERCHARGER | Splendid warhorse for increasing pressure of engine (12) |
| PUTOUTMOREFLAGS | Novel suggestion for increasing Queen's welcome? |