The most common and most likely answer to this crossword clue is the 6 letter word SPASMS
S
P
A
S
M
S
More clues leading to the result SPASMS
- Jerks pass out when cut by short sergeant-major
- Wells manuscript contracts
- Jerks back sadomasochistic idiots
- Wells started writing in sudden bursts of activity
- Fits sergeant-major into health resorts
- Jerks text resort to the west
- ‘Sun’ involved in junk communication before news, finally, in brief spurts
- Wells starts writing in sudden bursts of activity
- Brief periods when baths admit some every second
- Text message about father’s tremors
Buddy explains!

The straight part
We know that "jerks" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case jerks = spasms.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 SPASMS mean?
SPASMS noun- A sudden, involuntary contraction of a muscle, a group of muscles, or a hollow organ.
- A violent, excruciating seizure of pain.
- A sudden and temporary burst of energy, activity, or emotion.
- To produce and undergo a spasm.