Ne'er-do-well? Used to be – but over the hill finally (7)

From Daily Telegraph Cryptic 31234, 20D

20D — Ne'er-do-well? Used to be – but over the hill finally (7)WASTREL

  • Definition
    Definition found: 'Ne'er-do-well?' — A 'ne'er-do-well' is a WASTREL.
  • Indicator
    Indicator found: 'finally'
  • Operation
    'finally' signals a letter_selection operation
  • Fodder
    Fodder: 'but over the hill'
  • Assembly
    WAS + TREL = WASTREL

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