The most common and most likely answer to this crossword clue is the 10 letter word STORYLINES
I've seen this crossword clue in The Guardian
S
T
O
R
Y
L
I
N
E
S
More clues leading to the result STORYLINES
- Worried less about one newspaper initially concealing Conservative plots
- Plots right-wing policy on board
- Plots beginning to subvert Conservative policies
- Plots special Conservative policies
- Plots Conservative approach in the case of schools
- Plots succeeded initially with Conservative approaches
- Small Conservative deceits concealing new plots
Buddy explains!

The straight part
We know that "plots" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case plots = storylines.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 STORYLINES mean?
STORYLINES noun- (authorship) The plot of a story.
- (climate science) A narrative description of a given modeling scenario, highlighting its main characteristics and underlying technical and socioeconomic drivers.