The most common and most likely answer to this crossword clue is the 4 letter word JARS
J
A
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The straight part
We know that "vessels" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case vessels = jars.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 JARS mean?
JARS noun- An earthenware container, either with two or no handles, for holding oil, water, wine, etc., or used for burial.
- A small, approximately cylindrical container, normally made of clay or glass, for holding fruit, preserves, etc., or for ornamental purposes.
- A jar and its contents; as much as fills such a container; a jarful.
- To preserve (food) in a jar.
- A clashing or discordant set of sounds, particularly with a quivering or vibrating quality.
- A quivering or vibrating movement or sensation resulting from something being shaken or struck.
- (by extension) A sense of alarm or dismay.
- The effect of something contradictory or discordant; a clash.
- A disagreement, a dispute, a quarrel; contention, discord; quarrelling.
- To knock, shake, or strike sharply, especially causing a quivering or vibrating movement.
- To harm or injure by such action.
- To shock or surprise.
- To act in disagreement or opposition, to clash, to be at odds with; to interfere; to dispute, to quarrel.
- To (cause something to) give forth a rudely tremulous or quivering sound; to (cause something to) sound discordantly or harshly.
- To quiver or vibrate due to being shaken or struck.
- Of the appearance, form, style, etc., of people and things: to look strangely different; to stand out awkwardly from its surroundings; to be incongruent.