Instant review of item impressing newspapers etc (9)
I believe the answer is:
immediate
'instant' is the definition.
(I've seen this before)
'review of item impressing newspapers etc' is the wordplay.
'review of' indicates anagramming the letters.
'impressing' indicates putting letters inside (impress historically meant to conscript).
'newspapers etc' becomes 'media'.
'item' is an anagram of 'imte'.
'imte' placed around 'media' is 'IMMEDIATE'.
(Other definitions for immediate that I've seen before include "Most urgent; current" , "Instantaneous" , "Direct" , "Prompt, straightaway" , "Nearest" .)