Crossword Genius

What an ambitious pole vaulter might do to set a higher standard? (5,3,3)

Ross

I believe the answer is:

raise the bar

I'm a little stuck... Click here to teach me more about this clue!

'higher standard?' is the definition.
I know nothing about this answer so I cannot judge whether this works.

'what an ambitious pole vaulter might do to set a' is the wordplay.
I cannot quite see how this works, but
'an' could be 'i' (Roman numeral for one) and 'i' is found in the answer.
'pole' could be 'bar' (I've seen this before) and 'bar' is found in the answer.
'do' could be 'set' (synonyms) and 'set' is located in the answer.
'a' is found in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in The Hindu.
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