Volunteers at last greeting American onboard for cold meal (5)
I believe the answer is:
sushi
'cold meal' is the definition.
The definition and answer can be both things that one consumes for nourishment as well as being singular nouns.
Maybe there's an association between them I don't understand?
'volunteers at last greeting american onboard' is the wordplay.
I cannot really see how this works, but
'greeting' could be 'hi' (hi is a kind of greeting) and 'hi' is found in the answer.
'american' could be 'us' (abbreviation for United States) and 'us' is located in the answer.
A single letter 's' remains which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'for' acts as a link.
Can you help me to learn more?
(Other definitions for sushi that I've seen before include "'Dish of rice, vegetables and raw fish (5)'" , "Japanese rice and raw fish dish" , "put away in Japan" , "Food from Japan" , "fare from Japan" .)