The most common and most likely answer to this crossword clue is the 9 letter word PESTILENT
I've seen this crossword clue in Financial Times
P
E
S
T
I
L
E
N
T
More clues leading to the result PESTILENT
- Causing nuisance, shut up about access to field
- Harmful nuisance I supplied money to for a while
- Off-piste, fast – and deadly
- Mischievous rascal. In France he’s turning ten
- Mischievous pet is fast becoming annoying
- Mischievous pet occupied by shimmering tinsel
- Deadly piste negotiated: fast time?
- Bug advanced carrying one likely to cause disease
- Shut up about access to field possibly causing trouble
- Annoying pet's let in by mistake
Buddy explains!
The straight part
We know that "deadly" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case deadly = pestilent.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 PESTILENT mean?
PESTILENT adjective- Highly injurious or destructive to life: deadly.
- Annoying.
- Harmful to morals or public order.