Concerning the morning's papers (5)
I believe the answer is:
reams
'papers' is the definition.
Although both the answer and definition are plural nouns, I cannot understand how one could define the other.
'concerning the morning's' is the wordplay.
'concerning' becomes 're' (both can mean on a particular topic).
'the morning's' becomes 'ams' (as in 12:00 AM).
're'+'ams'='REAMS'
Can you help me to learn more?
(Other definitions for reams that I've seen before include "Large quantities (of paper?)" , "This much paperwork" , "Large quantity of written matter" , "Scrapes the barrel" , "Lots of paper" .)