Hitting with can (3)
I believe the answer is:
tin
'can' is the definition.
(both are metal containers)
'hitting with' is the wordplay.
'with' indicates a hidden word.
'TIN' is hidden in the letters of 'hitting'.
(Other definitions for tin that I've seen before include "roofing material" , "Kind of metal often used as food container" , "Silvery-white metal used in cans" , "With copper, makes bronze" , "1 down, symbol Sn" .)