Crossword Genius

Rose is involved in basketwork (6)

Ross

I believe the answer is:

osiers

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'rose is involved in basketwork' is the definition.
I can't judge whether this definition defines the answer.

'rose is involved in' is the wordplay.
'involved in' is an anagram indicator (involved can mean complex or confusing).
'rose'+'is'='roseis'
'roseis' with letters rearranged gives 'OSIERS'.

Can you help me to learn more?

(Other definitions for osiers that I've seen before include "Flexible twigs used in basketwork" , "Roses I find with flexible willow twigs" , "Willow twigs used in basket-making" , "Small willows" , "Kind of willows for weaving - Rosie's?" .)

I've seen this clue in The Globe and Mail.
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