Fibre obtained from mistletoe (5)

I believe the answer is:

istle

'fibre' is the definition.
(I've seen this before)

'obtained from mistletoe' is the wordplay.
'obtained from' says the answer is hidden in the clue.
'ISTLE' is hidden within 'mistletoe'.

(Other definitions for istle that I've seen before include "Fibre from yucca or agave trees" , "Carpet material" , "for making nets?" .)

I've seen this clue in The Guardian.

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