The most common and most likely answer to this crossword clue is the 5 plus 5 letter word JOLLY ROGER
I've seen this crossword clue in Independent
J
O
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More clues leading to the result JOLLY ROGER
- Flag received on trip
- Party received standard warning of potential takeover bid?
- Flag is cheerful, I understand
- Flag day out received and understood
- Standard requirement for pirates?
- Flier in black and white certainly understood
- Flag message understood by party
- Party understood naval indicator
- Pirates’ standard marine agreement
- Jovial acknowledgement of a bad standard
Buddy explains!
The straight part
We know that "Flier in black and white" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case flier in black and white = jolly roger.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.