Bush, a sort of statesman? (5)
I believe the answer is:
elder
This clue is a double definition.
'bush' is the first definition.
(I know that elder is a type of bush)
'a sort of statesman?' is the second definition.
(as in an elder statesman)
(Other definitions for elder that I've seen before include "senior church member" , "Tree for a church senior" , "Ancestor" , "Senior leader" , "Tree; of greater age" .)