Summary concerning player in national team (5)
I believe the answer is:
recap
'summary' is the definition.
(recap is a kind of summary)
'concerning player in national team' is the wordplay.
'concerning' becomes 're' (both can mean on a particular topic).
'player in national team' becomes 'cap' (I can't justify this - if you can you should believe this answer much more).
're'+'cap'='RECAP'
Can you help me to learn more?
(Other definitions for recap that I've seen before include "Retrospective summary" , "Epitomize" , "In summary, state again" , "Summarise at the end" , "Repeat of main points" .)