Crossword Genius

British novelist gets through extended hibernation (9)

Ross

I believe the answer is:

winterson

I'm a little stuck... Click here to teach me more about this clue!

'british novelist' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.

'through extended hibernation' is the wordplay.
I cannot quite see how this works, but
'through' could be 'in' and 'in' is found in the answer.
This may be the basis of the clue (or it may be nonsense).

'gets' is the link.

Can you help me to learn more?

I've seen this clue in The Independent.
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