Might such a vessel be well-filled? (3,6)
I believe the answer is:
oil tanker
'might such a' is the definition.
I can't judge whether this definition defines the answer.
'vessel be well-filled?' is the wordplay.
I cannot quite see how this works, but
'vessel' could be 'tanker' (tanker is a kind of vessel) and 'tanker' is found within the answer.
'well' could be 'oil' (oil well is a kind of well) and 'oil' is located in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for oil tanker that I've seen before include "boat" , "Ship carrying "black gold"" , "Ship carrying fuel" , "Fuel transporter" , "[See] ocean-going vessel" .)