Pianist prime minister (Poland's first): 'We risked a change' (10)
I believe the answer is:
paderewski
'pianist prime minister' is the definition.
(Ignacy Paderewski, pianist who became Polish PM)
'poland's first we risked a change' is the wordplay.
'poland's first' becomes 'p' (1st letter of 'poland').
'change' indicates an anagram.
'we'+'risked'+'a'='weriskeda'
'weriskeda' anagrammed gives 'aderewski'.
'p'+'aderewski'='PADEREWSKI'
(Other definitions for paderewski that I've seen before include "Pianist who became prime minister of Poland" , "in Polish politics" , "Polish pianist and politician" , "Pianist who became Poland's prime minister in 1919" , "Ignace Jan -, Polish pianist and statesman" .)