The most common and most likely answer to this crossword clue is the 6 letter word OUTING
I've seen this crossword clue in The Sunday Telegraph
O
U
T
I
N
G
More clues leading to the result OUTING
- Trip away and at home? Good
- Trip over rhino in Uganda and African's first to run!
- Looking annoyed, wanting power trip
- Soliciting without beginning trip
- A little stout in galley for trip
- Don’t start selling excursion
- Opposites meeting before good trip
- Pleasure trip that puts the private on parade?
- Trip over centre of huge round container
- Maybe exposing the secrets of Sally
Buddy explains!

The straight part
We know that "excursion" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case excursion = outing.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 OUTING mean?
OUTING verb- To eject; to expel.
- To reveal (a person) as LGBT+ (gay, trans, etc).
- To reveal (a person or organization) as having a certain secret, such as a being a secret agent or undercover detective.
- To reveal (a secret).
- To come or go out; to get out or away; to become public or apparent.
- A pleasure trip or excursion.
- An appearance to perform in public, for example in a drama, film, on a musical album, as a sports contestant etc.
- The practice of publicly revealing that a person is homosexual or transgender without that person's consent.