Schoolroom fixture (4)
I believe the answer is:
'schoolroom fixture' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for desk that I've seen before include "Place for writing or serving the public" , "Table for writing, reading etc" , "Writer's workbench" , "Hotel counter; newspaper section" , "Item of office (or schoolroom) furniture" .)