Cryptic crossword clue
Thus a reason not to smoke with a French rogue 3,2,1,3

The most common and most likely answer to this crossword clue is the 3 plus 2 plus 1 plus 3 letter word SON OF A GUN

I've seen this crossword clue in The Guardian
S
O
N
O
F
A
G
U
N

Buddy explains!

The straight part
We know that "rogue" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case rogue = son of a gun.
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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