Finished with stage event? It's more than one can take (14)

'take' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps there's a link between them I don't understand?

'finished with stage event? it's more than one' is the wordplay.
I cannot really understand how this works, but
'finished' could be 'over' (over can mean finished or ended) and 'over' is present in the answer.
'one' could be 'o' (I've seen this in other clues) and 'o' is found within the answer.
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is found in the answer.
This may be the basis of the clue (or it may be nonsense).

'can' acts as a link.

Can you help me to learn more?