Dish of milk at last infant brought up (5)
I believe the answer is:
kebab
'dish' is the definition.
(kebab is a kind of dish)
'milk at last infant brought up' is the wordplay.
'at last' says to take the final letters.
'infant' becomes 'babe' (synonyms).
'brought up' shows that the letters should be reversed in order (in a down clue, letters go up).
The final letter of 'milk' is 'k'.
'babe' reversed gives 'ebab'.
'k'+'ebab'='KEBAB'
'of' is the link.
(Other definitions for kebab that I've seen before include "Turkish meat dish" , "Meat preparation" , "Meat grilled on skewer" , "Small pieces of meat and veg cooked on a skewer" , "Pieces of meat, vegetables etc cooked on skewer" .)