It's not clear cook could finish pastry (6)

I believe the answer is:

cloudy

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'it's not clear' is the definition.
I can't tell whether this definition defines the answer.

'cook could finish pastry' is the wordplay.
'cook' is an anagram indicator.
'finish' indicates one should take the final letters.
The final letter of 'pastry' is 'y'.
'could' is an anagram of 'cloud'.
'cloud'+'y'='CLOUDY'

Can you help me to learn more?

(Other definitions for cloudy that I've seen before include "Murky or nebulous" , "(Of a liquid) not clear" , "'Overcast, nebulous (6)'" , "It's unclear" , "Dull, overcast" .)

I've seen this clue in the Irish Times (Crosaire) and the Irish Times.

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