Care centre with no overnight charges? (3,7)
I believe the answer is:
day nursery
'centre with no overnight charges?' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps there's an association between them I don't understand?
'care' is the wordplay.
I cannot really understand how this works, but
'care' could be 'nurse' (I've seen this before) and 'nurse' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
(Another definition for day nursery that I've seen is " Kindergarten".)