Lots of papers about large region (5)
I believe the answer is:
realm
'region' is the definition.
(I know that region can be written as realm)
'lots of papers about large' is the wordplay.
I cannot really understand how this works, but
'lots' could be 'm' and 'm' is found in the answer.
'about' could be 'rea' (I've seen this in other clues) and 'rea' is found in the answer.
'large' could be 'l' (eg in clothes sizes) and 'l' is located in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for realm that I've seen before include "Kingdom, domain" , "department" , "Land under a king or queen" , "Area of influence" , "Empire - state" .)