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Manet
or
Hockney
originally
turned
over
(4,4)
Manet or Hockney originally turned over (4,4)
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The definition is at the end of the clue.
How the clue works
Over is the definition, in the sense of 'more than'. Take the letters of 'Manet or' and anagram them (indicated by 'turned'), then add H from the start of 'Hockney originally' — together MANETOR + H rearranges to give MORE THAN.