Space hero Rogers encounters alien vessel (6)
I believe the answer is:
bucket
'vessel' is the definition.
(I know that bucket is a type of vessel)
'space hero rogers encounters alien' is the wordplay.
I cannot really see how this works, but
'alien' could be 'et' (extra terrestrial) and 'et' is found within the answer.
The remaining letters 'buck' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for bucket that I've seen before include "Resembling soil" , "Water receptacle" , "Round open water container with handle" , "Pail for liquids" , "Pour" .)