The most common and most likely answer to this crossword clue is the 6 letter word NORMAN
I've seen this crossword clue in The Daily Telegraph
N
O
R
M
A
N
More clues leading to the result NORMAN
- A Christie novel has an added French dialect
- Invader right to enter that which is claimed to be an island
- Reference standard article about person from …
- Golden castle maybe following new architectural style
- Usual thing, article featuring Greg? Of course
- French people run into a woman, perhaps
- French person‘s standard article
- Nautical bar, standard one
- Invader right to occupy island, said writer
- Standard article on Wisdom?
Buddy explains!
The straight part
We know that "one who served under William" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case one who served under william = norman.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 NORMAN mean?
NORMAN noun- Normie
- A wooden bar, or iron pin.