As for beet, it’s cooked and eaten (5,4)
I believe the answer is:
roast beef
'and eaten' is the definition.
I can't tell whether this defines the answer.
'as for beet it's cooked' is the wordplay.
'it's cooked' indicates an anagram.
'as'+'for'+'beet'='asforbeet'
'asforbeet' with letters rearranged gives 'ROAST-BEEF'.
Can you help me to learn more?
(Other definitions for roast beef that I've seen before include "Joint" , "traditional meal" , "Traditional English food" , "Traditional English dish" , "Typically 7 down dish" .)