Plate of meat we hear Ian cooked (6)
I believe the answer is:
lamina
'plate' is the definition.
(anatomical term for a plate or layer)
'meat we hear ian cooked' is the wordplay.
'meat' becomes 'lamb' (lamb is a kind of meat).
'we hear' shows a homophone (sound like).
'cooked' indicates an anagram (letters cooked into a new form).
'lamb' sounds like 'lam'.
'ian' anagrammed gives 'ina'.
'lam'+'ina'='LAMINA'
'of' acts as a link.
(Other definitions for lamina that I've seen before include "Thin plate or scale" , "Flat plate" , "Thin plate or layer" .)