The most common and most likely answer to this crossword clue is the 8 letter word CERULEAN
I've seen this crossword clue in The Daily Telegraph
C
E
R
U
L
E
A
N
More clues leading to the result CERULEAN
- Empty coupe, next to Fiat, an azure colour
- Church canon with article that’s kind of 24 down
- May must accept European sovereignty, being blue
- Laurence looking terrible in blue?
- Colour of container holding bait sent up by Edward
- Mostly uncleared, hazy, like a summer sky
- Article following church doctrine describes the heavens
- Blue, limitless oceans enthralling judge
Buddy explains!
The straight part
We know that "blue" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case blue = cerulean.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 CERULEAN mean?
CERULEAN noun- (color) A greenish-blue color.
- Any of various lycaenid butterflies of the genus Jamides.
- Sky-blue.