English not needed in long story (4)

I believe the answer is:

yarn

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'long story' is the definition.

I don't understand the rest of the clue.

(Other definitions for yarn that I've seen before include "Rambling story" , "A long tale" , "Sailor's tale" , "Spun fibre" , "Sort of tale" .)

I've seen this clue in The Sunday Times and The Times.

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