Answer: neonlight

AnswerCrossword Clue
NEONLIGHTAd enhancement
NEONLIGHTLamp in "The Sounds of Silence"
NEONLIGHTElement of the Great White Way
NEONLIGHTNighttime advertising sign, maybe
NEONLIGHTStrip sight
NEONLIGHTElemental luminosity?
NEONLIGHTBar magnet?