Sean, acting as statesman? (4)
I believe the answer is:
penn
This clue might be a double definition.
'sean acting' is the first definition.
The definition suggests a singular noun which matches the answer.
'statesman?' is the second definition.
Both the answer and definition are singular nouns.
Maybe there's an association between them I don't understand?
'as' is the link.
Can you help me to learn more?
(Other definitions for penn that I've seen before include "Colonising Quaker" , "US state (abbrev.)" , "Early Quaker leader" , "William --, founder of a US state" , "William ---, Quaker colonist" .)