Food our team brought on board unpowered vessel? (5)
I believe the answer is:
sushi
'food' is the definition.
(sushi is a kind of food)
'our team brought on board unpowered vessel?' is the wordplay.
I cannot really understand how this works, but
'our team' could be 'us' and 'us' is present in the answer.
This may be the basis of clue (or it may be nonsense).
(Other definitions for sushi that I've seen before include "fare from Japan" , "Asian dish" , "exotic dish" , "Food from Japan" , "Rice, seafood cuisine" .)