Make improvements – righten when this happens? (4,3,7)

From Daily Telegraph Cryptic 3374, 7D

7D — Make improvements – righten when this happens? (4,3,7)RING THE CHANGES

  • Definition
    Definition found: '' — The whole clue is the definition — to make a whole series of alterations (and, played on bells, to rearrange the order).
  • Indicator
    Indicator found: 'when'
  • Operation
    'when' signals a anagram operation
  • Fodder
    Fodder: 'righten'
  • Synonym
    Synonyms spotted: 'this happens?' → CHANGES
  • Assembly
    (RIGHTEN > RINGTHE) + CHANGES = RING THE CHANGES

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