The most common and most likely answer to this crossword clue is the 4 plus 5 letter word SEMI FINAL
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Buddy explains!
The straight part
We know that "almost last cup game" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case almost last cup game = semi final.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does SEMI FINAL mean?
SEMI FINAL noun- A playoff in the round with only four players or teams left, the stage before the final.
- (general) A competition that narrows a field of contestants (semifinalists) to a set of finalists, for a subsequent final.