Statesmanlike input, possibly? (5)

I believe the answer is:

putin

I'm a little stuck... Click here to teach me more about this clue!

'statesmanlike' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'input possibly?' is the wordplay.
'possibly?' indicates an anagram (I've seen 'possibly' mean this).
'input' anagrammed gives 'PUTIN'.

Can you help me to learn more?

(Other definitions for putin that I've seen before include "Introduce" , "Russian leader" , "Russian president" , "powerful leader" .)

I've seen this clue in the Evening Standard.

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