The most common and most likely answer to this crossword clue is the 6 letter word ESCORT
I've seen this crossword clue in Financial Times
E
S
C
O
R
T
More clues leading to the result ESCORT
- Corset fashioned for hired companion
- Parisian is snatching my date!
- Best not start to boogie around my chaperone
- Old car key — something that wasn’t wanted
- Company car once made by Ford
- Armed guard in foreign sector
- Go along with sector changes
- Come along with fancy corset
- Conservative in E-type getting armed guard
- Go with exotic corset
Buddy explains!

The straight part
We know that "car" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case car = escort.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 ESCORT mean?
ESCORT noun- A group of people or vehicles, generally armed, who go with a person or people of importance to safeguard them on a journey or mission.
- An accompanying person in such a group.
- A guard who travels with a dangerous person, such as a criminal, for the protection of others.
- A group of people attending as a mark of respect or honor.
- An accompanying person in a social gathering, etc.
- Protection, care, or safeguard on a journey or excursion.
- (somewhat euphemistic) A sex worker who does not operate in a brothel, but with whom clients make appointments; a call girl or male equivalent.
- To attend to in order to guard and protect; to accompany as a safeguard (for the person escorted or for others); to give honorable or ceremonious attendance to
- To accompany (a person) in order to compel them to go somewhere (e.g. to leave a building).
- To go with someone as a partner, for example on a formal date.