The old man, among others, gets a meal (6)
I believe the answer is:
repast
'a meal' is the definition.
(synonyms)
'the old man among others' is the wordplay.
'the old man' becomes 'pa' (both can mean father).
'among' means one lot of letters goes inside another.
'others' becomes 'rest' (I've seen this before).
'pa' put into 'rest' is 'REPAST'.
'gets' is the link.
(Other definitions for repast that I've seen before include "A formal sort of meal" , "Something to eat" , "A meal concerning time gone by" , "Banquet" , "lunch?" .)