Good enough for the national team? (7)
I believe the answer is:
capable
'good' is the definition.
(thesaurus)
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for capable that I've seen before include "Of a person, competent" , "'Clever, able (7)'" , "Able, competent" , "accomplished" , "Able, proficient" .)