Father taking others out for a meal (6)
I believe the answer is:
repast
'for a meal' is the definition.
(repast can mean a meal)
'father taking others' is the wordplay.
I cannot quite see how this works, but
'father' could be 'pa' (pa can mean dad or father) and 'pa' is found within the answer.
'others' could be 'rest' (eg the rest of a group) and 'rest' is found within the leftover letters.
No letters remain.
This may be the basis of the clue (or it may be nonsense).
'out' is the link.
Can you help me to learn more?
(Other definitions for repast that I've seen before include "Prates about meal" , "Something to eat" , "A meal concerning time gone by" , "lunch?" , "Banquet" .)