Copper guarding university interrupts 5am clean (6)
20A — Copper guarding university interrupts 5am clean (6) — VACUUM
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Definition
Definition found: 'clean' — A straight synonym sits at one end of the clue — which single word here means the same as the answer?A straight synonym sits at one end of the clue — which single word here means the same as the answer?
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Indicator
Indicator found: 'guarding'A word about wrapping or shielding usually means one piece is tucked inside another.
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Operation
'guarding' signals a container operation
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Fodder
Fodder: 'Copper university'
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Indicator
Indicator found: 'interrupts'A word about breaking in tells you a built-up piece is dropped into the middle of another.
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Operation
'interrupts' signals a container operation
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Fodder
Fodder: 'Copper university 5am'
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Abbreviation
Abbreviations spotted: 'Copper' → CUA metal often points at its chemical symbol; this forms the shell of the first wrap.
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Abbreviation
Abbreviations spotted: 'university' → UA place of learning gives the single letter tucked inside that shell.
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Synonym
Synonyms spotted: '5am' → VAMThe time of day reads as a Roman numeral followed by the rest of it, taken as the letters it spells.
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Assembly
(CU + U > C(U)U) + VAM = VA(CUU)M