Information is confusing Putin (5)
I believe the answer is:
input
'information' is the definition.
(input is a kind of information)
'confusing putin' is the wordplay.
'confusing' indicates anagramming the letters.
'putin' anagrammed gives 'INPUT'.
'is' is the link.
(Other definitions for input that I've seen before include "Signal supplied to a device" , "Data etc supplied to computer" , "contributed information" , "Data supplied to computer system" , "Data entry" .)