Discontented poor Indian and commonplace — not like him! (6)
I believe the answer is:
prince
'commonplace not like him' is the definition.
'Prince' can be an answer for 'him'. I'm not certain of the 'commonplace not like' bit.
'discontented poor indian' is the wordplay.
'discontented' suggests removing the centre (the word's contents are removed).
'indian' becomes 'ince' (I can't justify this - if you can you should believe this answer much more).
'poor' with its middle removed is 'pr'.
'pr'+'ince'='PRINCE'
'and' is the link.
(Other definitions for prince that I've seen before include "Senior male member of a royal family after the sovereign" , "Panto character" , "Son of a sovereign" , "Royal personage" , "Machiavellian ruler" .)