Awful bother with rain for one out during colder months? (10)

I believe the answer is:

hibernator

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'one out during colder months?' is the definition.
I can't tell whether this definition defines the answer.

'awful bother with rain' is the wordplay.
'awful' indicates anagramming the letters.
'with' is a charade indicator (letters next to each other).
'bother'+'rain'='botherrain'
'botherrain' anagrammed gives 'HIBERNATOR'.

'for' acts as a link.

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