The most common and most likely answer to this crossword clue is the 10 letter word RACECOURSE
I've seen this crossword clue in The Times
R
A
C
E
C
O
U
R
S
E
More clues leading to the result RACECOURSE
- People getting some education in Exeter or Warwick, say
- Vehicle turned up to rescue suspect seen round old track
- Track – a resource that’s built around circuit, primarily
- Track blood flow
- Academic requires vacation in resort, Cheltenham perhaps
- Track from programme following career
- Ethnicity lessons in Ascot, for example
- People are rude about nothing — you can bet on it!
- Ethnic group with dish in better frequented location?
- Access to go round Bill’s track
Buddy explains!

The straight part
We know that "Exeter or Warwick, say" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case exeter or warwick, say = racecourse.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 RACECOURSE mean?
RACECOURSE noun- A course over which races are run.
- A racetrack where horse races are run.