Flying V? (5)

I believe the answer is:

skein

'flying v?' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for skein that I've seen before include "Flock on the move" , "Ball of yarn" , "Loose bundle of yarn" , "Coil of yarn - group of flying geese" , "A number of birds" .)

I've seen this clue in The Independent and The Sun.

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