The most common and most likely answer to this crossword clue is the 8 letter word INVASIVE
I
N
V
A
S
I
V
E
More clues leading to the result INVASIVE
- Encroaching female brought up in home where flowers are displayed
- Where you put flowers around four is disturbing
- Encroaching where flowers may be covering naked diva
- Intruding in vessel, circumventing four on watch, say
- Encroaching where flowers might be around pruned creeper
- Terribly vain and flashy sort without power beginning to encourage encroaching
- In commotion, I’ve new visa for trespassing
- Viviane's surprisingly meddlesome
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 INVASIVE mean?
INVASIVE noun- An invasive organism, as, a plant or animal.
- That invades a foreign country using military force.
- Relating to military aggression generally.
- (of a plant or animal) That grows in environments which do not harbor natural enemies, often to the detriment of native species or of food or garden flora and fauna.
- (of a carcinoma etc) That invades healthy tissue; (of a procedure) in which part of the body is entered
- Intrusive on one's privacy.
- Coming from outside; originating externally.