Paper bundle half studied in the morning (4)
I believe the answer is:
ream
'paper bundle' is the definition.
'ream' can be an answer for 'paper' (I've seen this before). I'm unsure of the 'bundle' bit.
'half studied in the morning' is the wordplay.
'half' means to take half the letters.
'studied' becomes 'read' (I've seen this before).
'in the morning' becomes 'am' (AM on a clock).
'read' halved is 're'.
're'+'am'='REAM'
Can you help me to learn more?
(Other definitions for ream that I've seen before include "Quantity of paper, about 500 sheets" , "Make hole larger - lot of paper" , "Widen out (bore)" , "Many sheets - enlarge hole" , "Many bits of paper" .)