Room to learn (5)
I believe the answer is:
study
I believe this is a double definition.
'room' is the first definition.
(study is a kind of room)
'learn' is the second definition.
(studying is a kind of learning)
'to' is the link.
(Other definitions for study that I've seen before include "Something worth observing" , "Swot" , "See 11" , "Scrutinize" , "Work-room" .)