Furnish a man with meat (3)
I believe the answer is:
ham
'meat' is the definition.
(I know that ham is a type of cut of pork)
'furnish a man with' is the wordplay.
'with' indicates a hidden word.
'HAM' is hidden in the letters of 'furnish a man'.
(Other definitions for ham that I've seen before include "Licensed amateur radio operator" , "Food" , "This actor overacts" , "Overacting pig?" , "Bad actor; Noah son" .)