See elderly woman briefly reversing pattern in socks (6)

I believe the answer is:

argyle

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'socks' is the definition.
(argyle is a kind of socks)

I cannot understand how the rest of the clue works.

(Other definitions for argyle that I've seen before include "See 10" , "Design of diamond-shaped patterns - Plymouth ___, football team" , "Diamond-shaped knitting pattern" , "Of diamond - patterned material" , "Lozenge-shaped design" .)

I've seen this clue in The Guardian.

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