The most common and most likely answer to this crossword clue is the 6 letter word GOSSIP
I've seen this crossword clue in The Times
G
O
S
S
I
P
More clues leading to the result GOSSIP
- Large pigs running about rabbit
- Casual chat and drink after work with son
- Rumours East German admitted to doctor
- Dirt thus brought back to feed wild pigs
- Energy drink a bit special is inside talk
- Small drink following function causes rumour
- Extremely large drink after good chat
- Quangos siphoned a certain amount off, creating scandal
- Pigs so disturbed by muck spreader
- Turn one’s back on son and quietly chat
Buddy explains!

The straight part
We know that "Casual chat" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case casual chat = gossip.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 GOSSIP mean?
GOSSIP noun- Someone who likes to talk about other people's private or personal business.
- Idle talk about someone’s private or personal matters, especially someone not present.
- Idle conversation in general.
- A genre in contemporary media, usually focused on the personal affairs of celebrities.
- A sponsor; a godfather or godmother; the godparent of one's child.
- A familiar acquaintance.
- Title used with the name of one's child's godparent or of a friend.
- To talk about someone else's private or personal business, especially in a manner that spreads the information.
- To talk idly.
- To stand godfather to; to provide godparents for.
- To enjoy oneself during festivities, to make merry.