Servant turning in during dinner? (6)
I believe the answer is:
menial
'servant' is the definition.
(I know that menial is a type of servant)
'turning in during dinner?' is the wordplay.
'turning' is a reversal indicator.
'during' means one lot of letters goes inside another.
'dinner?' becomes 'meal' (dinner is a meal).
'in' reversed gives 'ni'.
'ni' placed inside 'meal' is 'MENIAL'.
(Other definitions for menial that I've seen before include "Humble - servant" , "Servile, low" , "(Of job) low in prestige" , "(Suitable for) servant of low status" , "Domestic servant" .)