Cryptic crossword clue
Trains in King’s Cross, men expecting disorder 7,8

The most common and most likely answer to this crossword clue is the 7 plus 8 letter word MORNING SICKNESS

I've seen this crossword clue in The Guardian
M
O
R
N
I
N
G
S
I
C
K
N
E
S
S

Buddy explains!

The straight part
We know that "expecting disorder" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case expecting disorder = morning sickness.
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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