Fresh pitas filled with butter and meat (8)
I believe the answer is:
pastrami
'meat' is the definition.
(pastrami is a kind of meat)
'fresh pitas filled with butter' is the wordplay.
'fresh' is an anagram indicator.
'filled with' indicates putting letters inside.
'butter' becomes 'ram' (I've seen this before).
'pitas' is an anagram of 'pasti'.
'pasti' going around 'ram' is 'PASTRAMI'.
'and' is the link.
(Other definitions for pastrami that I've seen before include "Thinly sliced beef" , "Tapered tuck; missile" , "beef dish" , "Spiced sliced beef" , "A tramp is (anag) - meat" .)