Stale lamb ruined dish (9)

I believe the answer is:

meatballs

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'stale lamb ruined dish' is the definition.
I can't judge whether this definition defines the answer.

'stale lamb ruined' is the wordplay.
'ruined' is an anagram indicator.
'stale'+'lamb'='stalelamb'
'stalelamb' with letters rearranged gives 'MEATBALLS'.

Can you help me to learn more?

(Other definitions for meatballs that I've seen before include "Food - stale lamb (anag)" , "dish?" .)

I've seen this clue in The Sun.

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