New arrival's stuff passed round at the same time (7)
I believe the answer is:
layette
'new arrival's stuff' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe there's an association between them I don't understand?
'passed round at the same time' is the wordplay.
'passed' becomes 'late' (I can't explain this - if you can you should believe this answer much more).
'round' means one lot of letters goes inside another.
'at the same time' becomes 'yet' (I've seen this in another clue).
'late' going around 'yet' is 'LAYETTE'.
Can you help me to learn more?
(Other definitions for layette that I've seen before include "Clothing and bedclothes for a new-born child" , "Outfit for a new baby" , "Baby's clothes etc." , "Baby's complete set of clothing, etc" , "small outfit" .)