Crossword Genius

Fit for international selection? (7)

Ross

I believe the answer is:

capable

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'fit' is the definition.
(I've seen this in another clue)

'international selection?' is the wordplay.
'international' becomes 'cap' (sportsperson who competes internationally).
'selection?' becomes 'able' (I can't explain this - if you can you should give a lot more credence to this answer).
'cap'+'able'='CAPABLE'

'for' is the link.

Can you help me to learn more?

(Other definitions for capable that I've seen before include "Of a person, competent" , "Able, competent" , "Adept" , "qualified" , "Able, proficient" .)

I've seen this clue in the Evening Standard.
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