The most common and most likely answer to this crossword clue is the 10 letter word RETICULATE
I've seen this crossword clue in The Guardian
R
E
T
I
C
U
L
A
T
E
Buddy explains!

The straight part
We know that "netted" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case netted = reticulate.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 RETICULATE mean?
RETICULATE verb- To distribute or move via a network.
- To divide into or form a network.
- To create a network.
- Network-like in form or appearance.