Disdaining home cooking, scoff away (3,3)

I believe the answer is:
eat out
'disdaining home cooking' is the definition.
I can't tell whether this definition defines the answer.
'scoff away' is the wordplay.
'scoff' becomes 'eat' (to scoff something is to eat it quickly).
'away' becomes 'out' (synonyms).
'eat'+'out'='EAT OUT'
Can you help me to learn more?
(Other definitions for eat out that I've seen before include "Dine in restaurant rather than home" , "'Don't dine at home (3,3)'" , "Go to restaurant for meal, don't dine at home" , "Visit a restaurant" , "Lunch in pub?" .)
