Things for one to do (5)
I believe the answer is:
solos
'things for one to do' is the definition.
(I've seen this in another clue)
'one to do' is the wordplay.
'one' becomes 'solo' (I've seen this before).
'to do' becomes 's' (I can't explain this - if you can you should believe this answer much more).
'solo'+'s'='SOLOS'
Can you help me to learn more?
(Other definitions for solos that I've seen before include "Unaccompanied parts" , "Pieces of music for one voice or instrument" , "Passages for one player" , "Musical passages for one instrument" , "Numbers" .)