Willow for basket-making (5)

I believe the answer is:

osier

'willow for basket-making' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for osier that I've seen before include "Basket maker" , "Basketry willow" , "Salix" , "Willow for making baskets" , "Kind of willow used in basketwork" .)

I've seen this clue in The Guardian.

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