Meal about finished (6)
I believe the answer is:
repast
'meal' is the definition.
(repast can mean a meal)
'about finished' is the wordplay.
'about' becomes 're' (regarding).
'finished' becomes 'past' (I've seen this in another clue).
're'+'past'='REPAST'
(Other definitions for repast that I've seen before include "A formal sort of meal" , "A meal concerning time gone by" , "Food - tapers (anag)" , "lunch?" , "Something to eat" .)