Cryptic crossword clue
How slowly one travelled according to many Christmas cards 2,6

The most common and most likely answer to this crossword clue is the 2 plus 6 letter word BY STAGES

I've seen this crossword clue in The Daily Telegraph
B
Y
S
T
A
G
E
S

Buddy explains!

The straight part
We know that "How slowly" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case how slowly = by stages.
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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