10 points: actor turning to phrase from Treasure Island (1,5,3,4)

From Daily Telegraph Cryptic 31262, 21A

21A — 10 points: actor turning to phrase from Treasure Island (1,5,3,4)X MARKS THE SPOT

  • Definition
    Definition found: 'phrase from Treasure Island' — The definition is the tail — the cry that finds buried treasure.
  • Indicator
    Indicator found: 'turning'
  • Operation
    'turning' signals a reversal operation
  • Fodder
    Fodder: 'to'
  • Abbreviation
    Abbreviations spotted: '10' → X
  • Synonym
    Synonyms spotted: 'points:' → MARKS
  • Synonym
    Synonyms spotted: 'actor' → THESP
  • Assembly
    X + MARKS + THESP + (> TO > OT) = X MARKS THE SPOT

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