After hash it's time for soup (6)
I believe the answer is:
potage
'for soup' is the definition.
(potage is a kind of soup)
'after hash it's time' is the wordplay.
'after hash' becomes 'pot' (I can't explain this - if you can you should give a lot more credence to this answer).
'it's time' becomes 'age' (an age is a period of time).
'pot'+'age'='POTAGE'
Can you help me to learn more?
(Other definitions for potage that I've seen before include "French soup, usually thick" , "that's thick" , "which is fairly thick" , "> sort of liquid nourishment" , "Thick, often creamy soup" .)