Fish dish? I miss a fish’s tail in a stew (7)
I believe the answer is:
sashimi
'fish dish?' is the definition.
(I've seen this before)
'i miss a fish's tail in a stew' is the wordplay.
'tail' indicates one should take the final letters.
'in a stew' is an anagram indicator.
The final letter of 'fish' is 'h'.
'i'+'miss'+'a'+'h'='imissah'
'imissah' is an anagram of 'SASHIMI'.
(Other definitions for sashimi that I've seen before include "Japanese raw fish - I'm as his (anag)" , "Something of chef's" , "possible accompaniment to 26 [SAKI]" , "Japanese dish of thinly sliced raw fish" , "dish from Japan" .)