The most common and most likely answer to this crossword clue is the 5 letter word MORES
I've seen this crossword clue in Financial Times
M
O
R
E
S
More clues leading to the result MORES
- Customs network, though diminished, will impound gold
- Customs inspector hauling last couple up
- Extra small habits
- Ways of life further south
- Additional source of security for customs
- What Japan has, compared with England, say? Manners!
- Customs finding precious metal concealed in papers
- Customs woman seizing precious metal
- With a final twist, 20ac’s partner’s done things?
- Customs further south
Buddy explains!
The straight part
We know that "Manners" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case manners = mores.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 MORES mean?
MORES noun- A set of moral norms or customs derived from generally accepted practices rather than written laws.
- A carrot; a parsnip.
- A root; stock.
- A plant.
- To root up.