Discover tender traded only with India (4)
I believe the answer is:
find
'discover tender' is the definition.
'find' can be an answer for 'discover' (finding is a kind of discovering). I am not certain of the 'tender' bit.
'traded only with india' is the wordplay.
'traded only' becomes 'f' (I can't explain this - if you can you should believe this answer much more).
'with' is a charade indicator (letters next to each other).
'india' becomes 'ind' (I've seen this in other clues).
'f'+'ind'='FIND'
Can you help me to learn more?
(Other definitions for find that I've seen before include "Discover by chance" , "Discovery" , "Come across" , "Encounter, locate" , "Realise" .)