A game is fixed, with an order for more? (4,5)

I believe the answer is:

same again

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'order for more?' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'a game is fixed with an' is the wordplay.
'fixed with' indicates anagramming the letters.
'a'+'game'+'is'='agameis'
'agameis' mixed up with 'an' gives 'SAME AGAIN'.

Can you help me to learn more?

(Another definition for same again that I've seen is " Another".)

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