The most common and most likely answer to this crossword clue is the 5 letter word MOATS
I've seen this crossword clue in The Times
M
O
A
T
S
More clues leading to the result MOATS
Buddy explains!
The straight part
We know that "ditches" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case ditches = moats.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 MOATS mean?
MOATS noun- A deep, wide defensive ditch, normally filled with water, surrounding a fortified habitation.
- An aspect of a business which makes it more "defensible" from competitors, either because of the nature of its products, services, franchise or other reason.
- A circular lowland between a resurgent dome and the walls of the caldera surrounding it.
- A hill or mound.