A dog's dinner? (4)
I believe the answer is:
chow
This clue might be a double definition.
'a dog's' is the first definition.
(chow is a kind of dog)
'dinner?' is the second definition.
The definition and answer can be both things that one consumes for nourishment as well as being singular nouns.
Perhaps there's an association between them I don't understand?
Can you help me to learn more?
(Other definitions for chow that I've seen before include "[HOUND]" , "Grub" , "Barker" , "Dog (from China?)" , "Long-haired dog of Chinese breed, or informal food" .)