Crossword Genius

Beyond compare, I could be no plainer (9)

Ross

I believe the answer is:

nonpareil

'beyond compare i' is the definition.
(someone beyond compare)

'could be no plainer' is the wordplay.
'could be' indicates anagramming the letters.
'no'+'plainer'='noplainer'
'noplainer' anagrammed gives 'NONPAREIL'.

(Other definitions for nonpareil that I've seen before include "A variety of apple" , "Unique type" , "having no match" , "Without equal, unrivalled" , "without peers" .)

I've seen this clue in The Guardian.
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