Mixture of gar and tuna I cooked with breadcrumbs (2,6)
I believe the answer is:
au gratin
'with breadcrumbs' is the definition.
(I've seen this before)
'mixture of gar and tuna i' is the wordplay.
'mixture of' is an anagram indicator (I've seen this in other clues).
'and' is a charade indicator (letters next to each other).
'tuna'+'i'='tunai'
'gar' after 'tunai' is 'tunaigar'.
'tunaigar' is an anagram of 'AU GRATIN'.
'cooked' acts as a link.
I am not very happy about this link. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for au gratin that I've seen before include "Of cooking, done with crust of melted cheese" , "baked with a coating of breadcrumbs" , "Scattered" , "Served with browned cheese and breadcrumbs" , "Like some dishes" .)