Room for children (7)
I believe the answer is:
nursery
'room for children' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for nursery that I've seen before include "Place for baby human or baby plant" , "Place for young children or for rearing plants" , "to which children go" , "Child care centre" , "For young humans and young plants" .)