Glass and paper? (6)
I believe the answer is:
mirror
This clue is a double definition.
'glass' is the first definition.
(a looking glass is a mirror)
'paper?' is the second definition.
(the Daily Mirror is a newspaper)
'and' acts as a link.
(Other definitions for mirror that I've seen before include "Common reflecting device" , "Reflecting glass" , "copy of > tabloid" , "Common device for reflection" , "which reflects what you want to see" .)