Entire NT revised for Web (8)
I believe the answer is:
internet
'web' is the definition.
(I've seen this before)
'entire nt revised' is the wordplay.
'revised' is an anagram indicator.
'entire'+'nt'='entirent'
'entirent' with letters rearranged gives 'INTERNET'.
'for' is the link.
(Other definitions for internet that I've seen before include "computer link-up" , "Electronic maze on which websites are based" , "surfing place" , "Worldwide computer network" , "Information superhighway" .)