Rump __; cut of beef
I believe the answer is:
roast
This clue is a double definition.
'rump' is the first definition.
(thesaurus)
'cut of beef' is the second definition.
(I've seen this in another clue)
(Other definitions for roast that I've seen before include "Slate" , "pan" , "Give a telling off to - cook" , "dish of lamb, say" , "Traditional Sunday lunch" .)