Paper about in the morning (4)
I believe the answer is:
ream
'paper' is the definition.
(I've seen this before)
'about in the morning' is the wordplay.
'about' becomes 're' ('re' means regarding or about).
'in the morning' becomes 'am' (AM on a clock).
're'+'am'='REAM'
(Other definitions for ream that I've seen before include "500 sheets, perhaps" , "20 quires of paper" , "Widen out (bore)" , "Many sheets - enlarge hole" , "Quantity of paper, about 500 sheets" .)