A second South American found in Indian state (5)
I believe the answer is:
assam
'indian state' is the definition.
(I've seen this before)
'a second south american' is the wordplay.
'second' becomes 's' (common abbreviation).
'south' becomes 'S' (abbreviation).
'american' becomes 'Am' (abbreviation in some contexts).
'a'+'s'+'s'+'am'='ASSAM'
'found in' acts as a link.
(Other definitions for assam that I've seen before include "Tea-growing state in north-east India" , "Indian province" , "region out east" , "Tea-producing Indian state" , "source of tea?" .)