Smoked beef in repast RA missed (8)
I believe the answer is:
pastrami
'smoked beef' is the definition.
(I've seen this before)
'in repast ra missed' is the wordplay.
'in' indicates a hidden word.
'PASTRAMI' can be found hidden inside 'repast ra missed'.
(Other definitions for pastrami that I've seen before include "Sliced cured beef" , "A tramp is (anag) - meat" , "Highly seasoned cut of smoked beef" , "Tapered tuck; missile" , "beef dish" .)