Crossword Genius

Uncle Arthur's day off? It isn't apparent (7)

Ross

I believe the answer is:

unclear

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'uncle arthur's day off? it isn't apparent' is the definition.
I can't judge whether this definition defines the answer.

'uncle arthur's day off?' is the wordplay.
'arthur's day off?' becomes 'Ar' ('Arthurs' with 'thurs', a day, taken off).
'uncle'+'ar'='UNCLEAR'

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(Other definitions for unclear that I've seen before include "Not easy to see or understand" , "Imprecise, hazy" , "hard to understand" , "An ulcer (anag)" , "Cloudy or opaque" .)

I've seen this clue in The Globe and Mail.
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