Crossword Genius

He confuses the clavier with a piano (8)

Ross

I believe the answer is:

percival

'he' is the definition.

'confuses the clavier with a piano' is the wordplay.
'confuses' is an anagram indicator.
'with' says to put letters next to each other.
'a piano' becomes 'p' (musical abbreviation).
'clavier' with letters rearranged gives 'ercival'.
'ercival' put after 'p' is 'PERCIVAL'.

(Another definition for percival that I've seen is " K".)

I've seen this clue in the Evening Standard.
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