Vessel - lacking stability? (7)
I believe the answer is:
pitcher
This clue could be a double definition.
'vessel' is the first definition.
(I know that pitcher is a type of jar)
'lacking stability?' is the second definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
Can you help me to learn more?
(Other definitions for pitcher that I've seen before include "Baseball bowler and vessel for liquid" , "American player" , "Ewer" , "Earthenware jug" , "Large jug; thrower" .)