Show concerning meat (6)
I believe the answer is:
reveal
'show' is the definition.
(I know that reveal is a kind of show)
'concerning meat' is the wordplay.
'concerning' becomes 're' (both can mean on a particular topic).
'meat' becomes 'veal' (veal is a kind of meat).
're'+'veal'='REVEAL'
(Other definitions for reveal that I've seen before include "Uncover or expose" , "Show, uncover" , "Make known, uncover and allow to be seen" , "Open up" , "Make public" .)