Vladimir , author of the novels Lolita and The Real Life of Sebastian Knight (7)
I believe the answer is:
nabokov
(Other definitions for nabokov that I've seen before include "'Russian-American author, famously of Lolita (7)'" , "Vladimir --, author" , "Wrote Lolita and Pale Fire" , "Author of ''Lolita'' in book van" , "Russian-American novelist" .)