Paper is designed to inform (7)
I believe the answer is:
apprise
'inform' is the definition.
(as in apprising someone of information)
'paper is designed' is the wordplay.
'designed' is an anagram indicator (designed with the letters).
'paper'+'is'='paperis'
'paperis' with letters rearranged gives 'APPRISE'.
'to' acts as a link.
(Other definitions for apprise that I've seen before include "Inform or tell" , "Give information to" , "Tell, advise" , "Inform, make known to" , "Give notice" .)