Newspaper with half-size pages (7)
I believe the answer is:
tabloid
'newspaper with half-size pages' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for tabloid that I've seen before include "Type of newspaper" , "Star, maybe" , "Ad lib to get lowbrow newspaper" , "Small-format newspaper" , "Newspaper with half-size pages" .)