Bear in the wild to sleep for months (9)
I believe the answer is:
hibernate
'sleep for months' is the definition.
'hibernate' can be an answer for 'sleep' (hibernating is a kind of sleeping). I'm not certain of the 'for months' bit.
'bear in the wild' is the wordplay.
'wild' is an anagram indicator.
'bear'+'in'+'the'='bearinthe'
'bearinthe' with letters rearranged gives 'HIBERNATE'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for hibernate that I've seen before include "Of animals, sleep through the winter" , "Sleep durning winter" , "Pass the winter in a dormant state" , "Breathe in to settle down for winter sleep" , "remain inactive for months" .)