Dish of cooked tripe (5)
I believe the answer is:
petri
'dish' is the definition.
(petri dish is a kind of dish)
'cooked tripe' is the wordplay.
'cooked' indicates anagramming the letters (letters cooked into a new form).
'tripe' with letters rearranged gives 'PETRI'.
'of' acts as a link.
(Other definitions for petri that I've seen before include "-- Dish, used for cultures" , "Sort of dish" , "Man with a signature dish" , "- - dish (science)" , "Bacteriologist giving name to culturing dish" .)