On radio, avoids current lively pieces (7)
I believe the answer is:
scherzi
'lively pieces' is the definition.
(a scherzo is a lively piece of music)
I don't understand how the remainder of the clue works.
(Other definitions for scherzi that I've seen before include "Playful symphony pieces" , "In music, brisk lively movements" , "vigorous movements" , "Lively movts. (It., mus.)" , "Fast dance movements" .)