Here are the possible solutions for describing a pre edison world clue
Answer
Clue
Relevancy
gaslit
Clue
Describing a pre-Edison world.
Definition
illuminated by gaslight
fab
Clue
Word before Four, when describing the Beatles, or Five, when describing Van Halen, or Fifteen, when describing a band I just made up with 15 awesome harpists
Definition
excellent
veteran
Clue
Describing a pre-1905 car (or pre-1919 at a pinch?)