My old album covers all propped up on old Queen vinyl? (7)

From Times Cryptic 29549, 20D —

20D — My old album covers all propped up on old Queen vinyl? (7)POLYMER

  • Definition
    Definition found: 'vinyl?'
  • Indicator
    Indicator found: 'covers'
  • Operation
    'covers' signals a container operation
  • Fodder
    Fodder: 'old album all'
  • Indicator
    Indicator found: 'propped up'
  • Operation
    'propped up' signals a reversal operation
  • Fodder
    Fodder: 'My old album covers all'
  • Abbreviation
    Abbreviations spotted: 'old album' → LP
  • Synonym
    Synonyms spotted: 'all' → O
  • Abbreviation
    Abbreviations spotted: 'old Queen' → ER
  • Assembly
    (MY + (LP + O > L(O)P) > MYLOP > POLYM) + ER = POLYMER

Try this clue in the trainer →