Bigwig (3)
'bigwig' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for nabob that I've seen before include "Mogul governor; very rich or important person" , "Rich British merchant in India" , "Person of conspicuous wealth or high status" , "Fat cat: governor in India during the Mogul empire" , "Devotional painting" .)
'bigwig' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for vip that I've seen before include "Important individual, initially" , "Significant or high-ranking person, in short" , "The red carpet is rolled out for him" , "Initially, individual of high status and influence" , "'High-ranking person, initially (3)'" .)