Opening tea — nice exporting India! (6)
I believe the answer is:
chance
'opening' is the definition.
(I've seen this in other clues)
'tea nice exporting india' is the wordplay.
'tea' becomes 'cha' (cha is a type of tea).
'exporting' is a deletion indicator (to export can mean to send something away).
'india' becomes 'i' (phonetic alphabet: alpha, bravo, charlie etc.).
'nice' with 'i' removed is 'nce'.
'cha'+'nce'='CHANCE'
(Other definitions for chance that I've seen before include "Run a risk" , "Happenstance" , "Risk the fortune" , "Liability" , "he unpredictable element of life" .)