Meal dad gets in break (6)
I believe the answer is:
repast
'meal' is the definition.
('repast' can be a synonym of 'meal')
'dad gets in break' is the wordplay.
'dad' becomes 'pa' ('pa' can be a synonym of 'dad').
'gets in' means one lot of letters goes inside another.
'break' becomes 'rest' (rest is a kind of break).
'pa' going into 'rest' is 'REPAST'.
(Other definitions for repast that I've seen before include "Food - tapers (anag)" , "Feast, meal" , "Banquet" , "A meal concerning time gone by" , "Something to eat" .)