Day nursery for children (6)
I believe the answer is:
creche
'day nursery for children' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for creche that I've seen before include "A day nursery used by working parents" , "Representation of the nativity scene" , "Place to leave children" , "Day nursery for very young children" , "A day nursery for children of working parents" .)