“Ah, so it goes” Crossword Clue

 The answer to the crossword clue "Ah, so it goes" is ALAS.

This is a common expression of resignation or acceptance. It is often used to express sadness or disappointment, but it can also be used to express a sense of fatalism or inevitability.

The expression "Ah, so it goes" is often attributed to the novel Slaughterhouse-Five by Kurt Vonnegut. However, the expression is actually much older and has been used in many different contexts.

In a crossword puzzle, the clue "Ah, so it goes" would most likely be answered with the word "ALAS". However, there are other possible answers, such as "UNFORTUNATELY" or "REGRETTABLY". The specific answer that is correct will depend on the context of the crossword puzzle.