Related Clues:
- Fashionable new flues being of service
- States with processed fuel coming in handy
- Advantageous; very able
- American fuel needing reprocessing to be profitable
- Serviceable bulb discovered after blown fuse
- American fuel reprocessing is practical
- Proving to be useful
- Of practical use
- Handy American fuel supply
- Proficient; handy
- Dulce et ___ (Horatian maxim)
- Worth using
- Like good tools
- Universal fuels designed to be beneficial
- Fuse blown at centre of bulb — that's handy