Dye brown paper, cutting top and bottom (4)
I believe the answer is:
Here is my best explanation:
'dye brown' is the definition.
'anil' can be an answer for 'dye' (I've seen this before). I am not sure about the 'brown' bit.
'paper cutting top and bottom' is the subsidiary indication.
'paper' becomes 'i' (UK newspaper).
'cutting' indicates putting letters inside.
'top' says to take the initial letters.
'bottom' becomes 'nl' (I can't justify this - if you can you should give a lot more credence to this answer).
The initial letter of 'and' is 'a'.
'i' inserted within 'anl' is 'anil'.
(Other definitions for anil that I've seen before include "Indian man", "Species of blue", "It produces dye", "Indigo (plant or dye)", "Plant", "Source of dye", "Shrub providing indigo", "Blue dye", "name of man" and "Nail the dye".)