"Young" reformer (4)
I believe the answer is:
turk
'young reformer' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for turk that I've seen before include "Anatolian" , "Ottoman" , "Native of Ankara, for example" , "Ankara citizen?" , "Person from W.Asia/S.E. Europe republic" .)