Starve, against tucking into food from a long time ago (8)
I believe the answer is:
medieval
'from a long time ago' is the definition.
(from the Middle Ages)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for medieval that I've seen before include "Belonging to the Middle Ages" , "Of an earlier period" , "Of the middle ages, or really old-fashioned" , "Relating to the Middle Ages" , "Am veiled in style of the middle ages" .)