Bombard with seasoning (6)
I believe the answer is:
pepper
I believe this is a double definition.
'bombard' is the first definition.
(thesaurus)
'seasoning' is the second definition.
(pepper is a kind of seasoning)
'with' acts as a link.
(Other definitions for pepper that I've seen before include "Pungent seasoning and vegetable" , "It's fiery" , "Pelt" , "Sprinkle liberally" , "Capsicum" .)