Movement of bear in the winter (9)
I believe the answer is:
hibernate
'winter' is the definition.
(I've seen this before)
'movement of bear in the' is the wordplay.
'movement of' indicates an anagram (I've seen 'movement' mean this (letters move around)).
'bear'+'in'+'the'='bearinthe'
'bearinthe' anagrammed gives 'HIBERNATE'.
(Other definitions for hibernate that I've seen before include "Sleep durning winter" , "Of animals, sleep through the winter" , "Breathe in for long winter sleep" , "Become dormant" , "Pass the winter in a dormant state" .)