Cryptic crossword clue
Sort of blue with old greens here 5,3,7

The most common and most likely answer to this crossword clue is the 5 plus 3 plus 7 letter word ROYAL AND ANCIENT

I've seen this crossword clue in Financial Times
R
O
Y
A
L
A
N
D
A
N
C
I
E
N
T

Buddy explains!

The straight part
We know that "greens here" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case greens here = royal and ancient.
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.

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