Crossword Genius

Rosie cultivated a willow (5)

Ross

I believe the answer is:

osier

'a willow' is the definition.
(I know that osier is a type of willow)

'rosie cultivated' is the wordplay.
'cultivated' indicates an anagram.
'rosie' with letters rearranged gives 'OSIER'.

(Other definitions for osier that I've seen before include "Basket-maker" , "one used to get weaving?" , "Withy" , "Kind of willow used in basketwork" , "may be a bit of a basket" .)

I've seen this clue in The Mirror.
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