Rival with deep novel won (9)
I believe the answer is:
prevailed
'won' is the definition.
(prevailing is a kind of winning)
'rival with deep novel' is the wordplay.
'with' says to put letters next to each other.
'novel' indicates an anagram.
'rival'+'deep'='rivaldeep'
'rivaldeep' with letters rearranged gives 'PREVAILED'.
(Other definitions for prevailed that I've seen before include "Was in force" , "had his way" .)