Dish that sees gunners fiddle endlessly (7)
I believe the answer is:
ravioli
'dish' is the definition.
(I've seen this before)
'gunners fiddle endlessly' is the wordplay.
'gunners' becomes 'ra' (Royal Artillery).
'fiddle' becomes 'violin' ('violin' can be a synonym of 'fiddle').
'endlessly' means to remove the last letter.
'violin' with its last letter taken off is 'violi'.
'ra'+'violi'='RAVIOLI'
'that sees' is the link.
(Other definitions for ravioli that I've seen before include "Pasta resembling pillowcases" , "food parcels" , "(Meat, cheese, etc filled) pasta cases" , "Filled pasta envelopes" , "Pasta with savoury stuffing" .)