Quickly repeating meat dish (4,4)
I believe the answer is:
chop chop
'quickly' is the definition.
(I know that quickly can be written as chop-chop)
'repeating meat dish' is the wordplay.
'repeating' shows that letters should be duplicated.
'meat dish' becomes 'chop' (I am not sure about this - if you are sure you should believe this answer much more).
'chop' duplicated is 'CHOP-CHOP'.
Can you help me to learn more?
(Other definitions for chop chop that I've seen before include "with expedition" , "Hurry up!" , "Quick" , "repeated punches" , "Get a move on" .)