The most common and most likely answer to this crossword clue is the 5 letter word BORER
B
O
R
E
R
More clues leading to the result BORER
Buddy explains!
The straight part
We know that "Pest" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case pest = borer.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 BORER mean?
BORER noun- A tedious person.
- A person who bores, who drills.
- A tool used for drilling.
- An insect or insect larva that bores into wood.
- One of the many types of mollusc that bore into soft rock.
- The hagfish (Myxine).