The most common and most likely answer to this crossword clue is the 6 letter word TO-DOS
I've seen this crossword clue in Independent
T
O
-
D
O
S
More clues leading to the result TO-DOS
Buddy explains!

The straight part
We know that "episodes of unrest" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case episodes of unrest = to-dos.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 TO-DOS mean?
TO-DOS noun- A fuss made over something.
- A task that has been noted as one that must be completed, especially on a list.