The most common and most likely answer to this crossword clue is the 8 letter word DOGBERRY
I've seen this crossword clue in The Guardian
D
O
G
B
E
R
R
Y
More clues leading to the result DOGBERRY
- John’s fish swallows tailless grebe, sadly
- Foolish constable found in nasty bog in part of Ulster
- A muddle-headed character to follow Chuck
- Constable supplying fruit to pet?
- Might he be 7 5 or 16 22 with 15?
- Foolish constable found in dreadful bog in NI district
- Constable from old country brought into Ulster city
- Foolish constable found in frightful bog in part of Ulster
- Word botcher finding treacherous bog in county
Buddy explains!

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 DOGBERRY mean?
DOGBERRY noun- The berry of the dogwood.
- Clintonia borealis