A high point, the one of Akela’s lads who goes the extra mile? (6,5)

'akela's lads who goes the extra mile?' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.

'a high point the one of' is the wordplay.
I cannot quite see how this works, but
'point' could be 's' (South) and 's' is found in the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found within the answer.
'one' could be 'i' (Roman numeral) and 'i' is found within the answer.
'of' could be 'o' and 'o' is located in the answer.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?