Possess a pot of money, in short, that will allow one to enjoy oneself (4,3)

I believe the answer is:

have fun

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'possess a pot of money in short' is the definition.
I don't know anything about this answer so I can't judge whether this works.

'will allow one to enjoy oneself' is the wordplay.
'will' is a charade indicator (letters next to each other) (I've seen this in other clues).
'allow' becomes 'have'.
'one to enjoy oneself' becomes 'fun' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'have'+'fun' is 'HAVE FUN'.

'that' acts as a link.

Can you help me to learn more?

I've seen this clue in The Irish Times.

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