Putin transformed data (5)
I believe the answer is:
input
'data' is the definition.
(thesaurus)
'putin transformed' is the wordplay.
'transformed' is an anagram indicator.
'putin' anagrammed gives 'INPUT'.
(Other definitions for input that I've seen before include "data-feed" , "supply" , "Contribution of work or information" , "store" , "contributed information" .)