The most common and most likely answer to this crossword clue is the 12 letter word BATTLEGROUND
I've seen this crossword clue in Financial Times
B
A
T
T
L
E
G
R
O
U
N
D
More clues leading to the result BATTLEGROUND
- Scene of conflict sees site of historic abbey reduced to dust
- Tablet unfortunately crushed in field
- Tablet sadly crushed in field
- Action station?
- “Culloden”, revolving turntable dog?
- Tablet from Kurukshetra, perhaps
- Kohli, say, heartily hitting onside ball in field
- Front bench with 80% leaving — old PM virtually crushed
Buddy explains!

The straight part
We know that "field" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case field = battleground.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 BATTLEGROUND mean?
BATTLEGROUND noun- A location where a battle may be fought, or has been fought.
- Any subject of dispute or contention.