Cryptic crossword clue
Modern train at London: second from King’s Cross 14

The most common and most likely answer to this crossword clue is the 14 letter word NONTRADITIONAL

I've seen this crossword clue in The Guardian
N
O
N
T
R
A
D
I
T
I
O
N
A
L

Buddy explains!

The straight part
We know that "Modern" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case modern = nontraditional.
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.

Crossword Answer definitions

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