Pull out of the shelter (7)
I believe the answer is:
retreat
This clue is a double definition.
'pull out' is the first definition.
(thesaurus)
'the shelter' is the second definition.
(thesaurus)
'of' acts as a link.
(Other definitions for retreat that I've seen before include "retirement" , "snug" , "secluded place" , "Monastery - bugle call" , "Take flight" .)