The most common and most likely answer to this crossword clue is the 4 plus 6 letter word NOSY PARKER
I've seen this crossword clue in The Guardian
N
O
S
Y
P
A
R
K
E
R
More clues leading to the result NOSY PARKER
- Damp squib, you might say, encapsulating the ultimate in dreary gossip
- Koreans pry awfully - and so do I!
- One can’t keep away from lad reversing one yard in front of driver pulling over
- Interested party prone to tangle with Krays
- Snoop or pry and sneak off
- It’s standard in Orkneys, perhaps, to be a curtain twitcher
- Snoop shows no interest in loud type leaving vehicle
- Inquisitive type runs to support Korean spy in trouble
- This busy-body wants to know and is supported by a writer
Buddy explains!

The straight part
We know that "Snoop" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case snoop = nosy parker.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.