Capable of being polished off and put away! (6)
I believe the answer is:
edible
'away' is the definition.
Both the definition and answer are adjectives. Maybe there's an association between them I don't understand?
I don't understand how the rest of the clue works.
Can you help me to learn more?
(Other definitions for edible that I've seen before include "Fit to be used as food" , "Fit to be eaten" , "OK for eating" , "Fit to eat" , "Digestible" .)