Big score in club tourney Ed put together (6,7)

I believe the answer is:

double century

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'big score' is the definition.
I know nothing about this answer so I can't judge whether this works.

'club tourney ed put together' is the wordplay.
'put together' is an anagram indicator (put the letter together correctly).
'club'+'tourney'+'ed'='clubtourneyed'
'clubtourneyed' anagrammed gives 'DOUBLE CENTURY'.

'in' acts as a link.

Can you help me to learn more?

(Another definition for double century that I've seen is " Score of ten score?".)

I've seen this clue in The Times.

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