The most common and most likely answer to this crossword clue is the 4 plus 5 letter word CITY STATE
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More clues leading to the result CITY STATE
Buddy explains!
The straight part
We know that "Singapore, say" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case singapore, say = city state.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 CITY STATE mean?
CITY STATE noun- A sovereign city, as in Ancient Greece, often part of a league of such cities.