The most common and most likely answer to this crossword clue is the 4 letter word JOLT
J
O
L
T
More clues leading to the result JOLT
- Scrap metal finally has filled jar
- Leader of Labour’s in touch? That’s a shock
- Shock line in note
- Jerk put minimum of liquor in trifle
- Write note about lecturer’s shock
- Hint about Labour’s leader produces shock
- Jar something very small’s left in
- Shock with fool getting joint for daughter
- Student in a little shock
- Student going through note gets a shock
Buddy explains!

The straight part
We know that "Jar" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case jar = jolt.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 JOLT mean?
JOLT noun- An act of jolting.
- A surprise or shock.
- A long prison sentence.
- A narcotic injection.
- To push or shake abruptly and roughly.
- To knock sharply
- To shock (someone) into taking action or being alert
- To shock emotionally.
- To shake; to move with a series of jerks.