The most common and most likely answer to this crossword clue is the 5 letter word PHIAL
P
H
I
A
L
More clues leading to the result PHIAL
- Greek character has a large medicine bottle
- Short chap carrying a little bottle
- Friend accepting greeting shows bottle
- Man holding a bottle
- Friend suppressing greeting shows little bottle
- Source of medicine mostly a success in China
- Sounds like smooth little glass bottle
- Container ship’s contents secured by mate
- Magnum, perhaps, hard to charge with a litre bottle
- Small bottle, as originally described by Collins?
Buddy explains!

The straight part
We know that "a small vessel" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case a small vessel = phial.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 PHIAL mean?
PHIAL noun- A glass vessel or bottle, especially a small bottle for medicines.
- To put or keep in, or as in, a phial.