Monitor display with the whole thesis? (9)
I believe the answer is:
wallpaper
'monitor display' is the definition.
(display for a computer wallpaper)
'with the whole thesis?' is the wordplay.
'with' becomes 'w' (abbreviation).
'the whole' becomes 'all' (I have seen 'The whole ' mean 'all' so perhaps 'whole' could also mean 'all').
'thesis?' becomes 'paper' (thesis is an academic paper).
'w'+'all'+'paper'='WALLPAPER'
(Other definitions for wallpaper that I've seen before include "Pasted covering" , "Mural decoration" , "Bland and unoriginal stuff - for decorating" , "Screen background" .)