How to surpass in competence (7)

I believe the answer is:

capably

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'how' is the definition.
Both the answer and definition are adverbs. Perhaps you can see a link between them that I don't see?

'surpass in competence' is the wordplay.
'surpass' becomes 'cap' (I've seen this before).
'in competence' becomes 'ably' (I am not sure about this - if you are sure you should believe this answer much more).
'cap'+'ably'='CAPABLY'

'to' acts as a link.

Can you help me to learn more?

(Another definition for capably that I've seen is " Showing competence".)

I've seen this clue in the Evening Standard.

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