The most common and most likely answer to this crossword clue is the 8 letter word STOCKPOT
I've seen this crossword clue in Financial Times
S
T
O
C
K
P
O
T
More clues leading to the result STOCKPOT
- Lid turned on standard ovenware item
- Plant cannabis in container in the kitchen
- Cooking vessel right to be removed from Gt Manchester town
- Over sink, store kitchen vessel
- Keep drug in cook’s vessel
- Location near Manchester, not right place for soup ingredients
- English town expels river vessel
- Keep drugs in the kitchen?
- Have cannabis for sale: one could find a meal here, too
- Neckwear to top, on reflection, chef’s basic requirement
Buddy explains!

The straight part
We know that "vessel" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case vessel = stockpot.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 STOCKPOT mean?
STOCKPOT noun- A large pot, such as is used for making stock or for cooking large amounts of soup.