The most common and most likely answer to this crossword clue is the 1 plus 3 plus 3 letter word A BAD LOT
I've seen this crossword clue in The Times
A
B
A
D
L
O
T
Buddy explains!
The straight part
We know that "Not one to trust/a dodgy man with a salty wife" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case not one to trust/a dodgy man with a salty wife = a bad lot.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.