When food's not put away, you tidy (7)
I believe the answer is:
uneaten
'when food's not put away' is the definition.
I can't judge whether this defines the answer.
'you tidy' is the wordplay.
'you' becomes 'u' (homophones).
'tidy' becomes 'neaten' (synonyms).
'u'+'neaten'='UNEATEN'
Can you help me to learn more?
(Other definitions for uneaten that I've seen before include "Not consumed as food" , "not chewed" , "Left on the plate" , "still on the table?" , "Make an outline of" .)