It's egg and meat for him (6)
I believe the answer is:
oliver
'him' is the definition.
'it's egg and meat' is the wordplay.
'it's egg' becomes 'o' (an 'o' resembles an egg).
'and' means one lot of letters go next to another.
'meat' becomes 'liver' (liver is a kind of meat).
'o'+'liver'='OLIVER'
'for' acts as a link.
(Other definitions for oliver that I've seen before include "Dickensian role?" , "Dickens boy who asked for more, and a musical comedy" , "Master Twist" , "See 19" , "Dickensian musical" .)