Servant returning home tucks into something to eat (6)
I believe the answer is:
menial
'servant' is the definition.
(menial is a kind of servant)
'returning home tucks into something to eat' is the wordplay.
'returning' is a reversal indicator.
'home' becomes 'in' ('he's home' can mean 'he's in').
'tucks into' is an insertion indicator.
'something to eat' becomes 'meal' (meal is a kind of food**).
'in' reversed gives 'ni'.
'ni' placed inside 'meal' is 'MENIAL'.
(Other definitions for menial that I've seen before include "Inferior like servant" , "A drudge" , "Humble - servant" , "Demeaning" , "(Of work) unskilled" .)