### Clue: Article upset Robert Clive, for instance (5)
### Answer: NABOB 
 ### Explanation: Definition: Clive, for instance 
 **Reversal of**(… upset, in a down clue) AN(an article in grammar) + BOB(short for the name Robert).
Defn: A person of high status, an example of which/for instance was Robert Clive, Commander-in-Chief of British India.