The most common and most likely answer to this crossword clue is the 9 letter word ABUNDANCE
I've seen this crossword clue in The Guardian
A
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More clues leading to the result ABUNDANCE
- Host a knees-up getting cake in
- Plenty of roll in a ball
- Much like a cakewalk, but smaller and quicker?
- Great deal for a roll plus salsa?
- Cornucopia, a pastry affair
- Something of Chelsea observed during a trip – wealth!
- Plenty having a ball, eating cake
- Plenty suggesting a trip round the bakery?
- A knees-up with cake eaten in plenty
- Host a ball after food
Buddy explains!
The straight part
We know that "Overflow" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case overflow = abundance.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 ABUNDANCE mean?
ABUNDANCE noun- A large quantity; many.
- An overflowing fullness or ample sufficiency; profusion; copious supply; superfluity; plentifulness.
- Wealth; affluence; plentiful amount of resources.
- Frequency, amount, ratio of something within a given environment or sample.
- A bid to take nine or more tricks in solo whist.