One quits newspapers possibly drowning in sauce sooner or later (7)
I believe the answer is:
someday
'later' is the definition.
(some day in the future)
'one quits newspapers possibly drowning in sauce sooner' is the wordplay.
'one' becomes 'i' (Roman numeral).
'quits' suggests deleting specific letters.
'newspapers possibly' becomes 'media' (newspaper is a kind of medium).
'drowning in' indicates putting letters inside.
'sauce sooner' becomes 'soy' (soy sauce. I am not sure about the 'sooner' bit.).
'media' with 'i' taken out is 'meda'.
'meda' placed within 'soy' is 'SOMEDAY'.
'or' acts as a link.
Can you help me to learn more?
(Other definitions for someday that I've seen before include "An unspecified time in the future" , "When will my prince come" , "eventually" , "song" , "At a future time; samoyed (anag.)" .)