Visionary's other novel covering page after page (7)
I believe the answer is:
prophet
'visionary's' is the definition.
(thesaurus)
'other novel covering page after page' is the wordplay.
'novel' is an anagram indicator.
'covering' is an insertion indicator.
'page' becomes 'p'.
'after' is a charade indicator (letters next to each other).
'page' becomes 'p'.
'other' anagrammed gives 'rohet'.
'rohet' going around 'p' is 'rophet'.
'rophet' put after 'p' is 'PROPHET'.
(Other definitions for prophet that I've seen before include "Divine spokesman or forecaster" , "what he says might happen" , "Soothsayer" , "Augur" , "Biblical seer" .)