The most common and most likely answer to this crossword clue is the 6 letter word INDIGO
I've seen this crossword clue in The Daily Telegraph
I
N
D
I
G
O
More clues leading to the result INDIGO
- Blue diamonds one’s kept in home are stolen?
- Like ring topped with cool colour
- Fashionable and fancy ring, dark blue
- A shade 4, changing second name to Oscar
- Shade during excavation nil
- Jones the architect conceals source of dark colour
- Trendy pad son leaves for introduction of Oxford blue
- By spade there's old plant
- Compiler doing restoration in blue
- One doing weaving with dye
Buddy explains!
The straight part
We know that "A blue" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a blue = indigo.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 INDIGO mean?
INDIGO noun- A purplish-blue colour
- An indigo-colored dye obtained from certain plants (the indigo plant or woad), or a similar synthetic dye.
- An indigo plant, such as from species in genera Indigofera, Amorpha (false indigo), Baptisia (wild indigo), and Psorothamnus and Dalea (indigo bush).
- Having a deep purplish-blue colour