Element of Tube lighting? (4)

From Daily Telegraph Cryptic 31244, 6D

6D — Element of Tube lighting? (4) — NEON

  • Definition
    The whole clue is one cryptic definition — read it laterally.
  • Indicator
    Indicator found: ''
  • Wordplay
    Wordplay: Cryptic definition
  • Assembly
    NEON = NEON

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