Crossword Genius

One can barely finish one's stage act (8)

Ross

I believe the answer is:

stripper

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

'one' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.

'barely finish one's stage act' is the wordplay.
I cannot quite understand how this works, but
'act' could be 'strip' (strip is a kind of act) and 'strip' is found in the answer.
The remaining letters 'per' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...

'can' acts as a link.

Can you help me to learn more?

(Other definitions for stripper that I've seen before include "Teasing dancer" , "One barely entertains" , "she reveals" , "exotic entertainer" , "Progressively barer performer" .)

I've seen this clue in The Guardian.
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