Tycoon in Hindu's trial is tainted (13)
I believe the answer is:
industrialist
'tycoon' is the definition.
(thesaurus)
'in hindu's trial is tainted' is the wordplay.
'in' says the answer is hidden in the clue.
'INDUSTRIALIST' can be found hidden inside 'hindus trial is tainted'.
(Other definitions for industrialist that I've seen before include "Manufacturing chief" , "Ford, perhaps" , "enterprising type" , "Tycoon" , "Businessman - distrust in Ali (anag)" .)