Break to take secretary for dinner, say (6)
I believe the answer is:
repast
'dinner say' is the definition.
(dinner is a kind of repast)
'break to take secretary' is the wordplay.
'break' becomes 'rest' (resting is a kind of breaking).
'to take' means one lot of letters goes inside another.
'secretary' becomes 'pa' (I've seen this in other clues).
'rest' placed around 'pa' is 'REPAST'.
'for' is the link.
(Other definitions for repast that I've seen before include "Feast, meal" , "A formal sort of meal" , "lunch?" , "Prates about meal" , "Banquet" .)