Bullets hidden in case of German meat (6)
I believe the answer is:
gammon
'meat' is the definition.
(gammon is a kind of meat)
'bullets hidden in case of german' is the wordplay.
'bullets' becomes 'ammo' (I've seen this before).
'hidden in' is an insertion indicator.
'case of' means to remove the middle letters (outsides of).
'german' with its middle taken out is 'gn'.
'ammo' placed inside 'gn' is 'GAMMON'.
(Other definitions for gammon that I've seen before include "Smoked pig meat" , "Hoax - hock of hog" , "Hind portion of a side of bacon" , "Cured meat of hindquarters of a pig" , "Cured ham; nonsense" .)