Record by composer on the radio
I believe the answer is:
list
'record by composer' is the definition.
'list' can be an answer for 'record' (list is a type of record). I'm not sure about the 'by composer' bit.
'on the radio' is the wordplay.
'on' is a charade indicator (letters next to each other).
'the' becomes 't' (the is pronounced as a 't' sound in some dialects).
'radio' becomes 'lis' (I can't explain this - if you can you should give a lot more credence to this answer).
't' after 'lis' is 'LIST'.
Can you help me to learn more?
(Other definitions for list that I've seen before include "Roster" , "Tabulate" , "Series of entries" , "Consecutive series of items" , "choose" .)