Crossword Genius

Copter is a wreck ultimately after struggling in turbulence? (3,7)

Ross

I believe the answer is:

air pockets

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'turbulence?' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'copter is a wreck ultimately after struggling' is the wordplay.
'ultimately' indicates one should take the final letters.
'after struggling' indicates an anagram.
The last letter of 'wreck' is 'k'.
'copter'+'is'+'a'+'k'='copterisak'
'copterisak' with letters rearranged gives 'AIR-POCKETS'.

'in' acts as a link.

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I've seen this clue in The Independent.
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