The most common and most likely answer to this crossword clue is the 7 letter word HUSTLER
I've seen this crossword clue in The Guardian
H
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More clues leading to the result HUSTLER
- Swindler almost entirely ruthless, sadly
- Swindler hurtles around
- Con man and cattle thief head off after horse
- Trull, she? Possibly, when given latitude
- Operator’s husband left shuffling along in overcoat
- Hooker: “Let’s break in Ben”
- Cocotte? This woman’s filled with wild lust
- Luther’s reformed cheat
- Sadly, her lust made her what she is
- Color red surrounds letters on a Cardinal's cap for all-out player
Buddy explains!

The straight part
We know that "Con man" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case con man = hustler.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.
What does HUSTLER mean?
HUSTLER noun- One who rushes or hurries; an energetic person.
- Somebody who pretends to be an amateur at a game in order to win bets.
- A pimp.
- A prostitute.
- A charlatan, huckster, grifter, a scoundrel.