Hungarian composer and pianist (5)
I believe the answer is:
liszt
'hungarian composer and pianist' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for liszt that I've seen before include "music writer" , "classical composer" , "Franz -, Hung. pianist" , "Hungarian composer, d. 1886" , "Franz . . . . ., great Hungarian composer" .)