Alas, I’m out of meat (6)
I believe the answer is:
salami
'meat' is the definition.
(salami is a kind of meat)
'alas i'm out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'alas'+'im'='alasim'
'alasim' anagrammed gives 'SALAMI'.
'of' is the link.
(Other definitions for salami that I've seen before include "Highly seasoned fatty sausage" , "Preserved meat sausage" , "Banger" , "Strongly flavoured Italian sausage" , "meat product" .)