Carrying American, unfinished boat possibly rolls (5)
I believe the answer is:
sushi
'carrying american unfinished boat possibly rolls' is the definition.
I can't tell whether this definition defines the answer.
'carrying american unfinished boat possibly' is the wordplay.
'carrying' indicates putting letters inside.
'american' becomes 'usa'.
'unfinished' means to remove the last letter.
'boat possibly' becomes 'shi' (I can't explain this - if you can you should believe this answer much more).
'usa' with its last letter removed is 'us'.
'us' going into 'shi' is 'SUSHI'.
Can you help me to learn more?
(Other definitions for sushi that I've seen before include "oriental dish" , "exotic dish" , "Oriental food" , "Japanese cold rice dish" , "Fated" .)