The most common and most likely answer to this crossword clue is the 8 plus 6 letter word PEASANTS REVOLT
I've seen this crossword clue in The Guardian
P
E
A
S
A
N
T
S
R
E
V
O
L
T
More clues leading to the result PEASANTS REVOLT
- Pastoral events demanding reform
- 24 across’s movement training, eg workers and soldiers — potential unit
- When workers and revolutionary enthusiast get in a strop, this is what you get!
- Historic rebellion disrupted pastoral events
- Pastoral events turned sour, resulting in uprising
- Riotous pastoral events?
Buddy explains!

The straight part
We know that "Pastoral events demanding reform" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case pastoral events demanding reform = peasants revolt.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.