Vessel’s company reported over girl, we hear? (8)
I believe the answer is:
crucible
'vessel's' is the definition.
(crucible is a kind of vessel)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for crucible that I've seen before include "Miller's bewitching play" , "Melting pot" , "Metal-melting container" , "it gets very heated" , "Trial" .)