Bombard and hide (4)
I believe the answer is:
pelt
This clue is a double definition.
'bombard' is the first definition.
(I know that bombard can be written as pelt)
'hide' is the second definition.
(I know that hide can be written as pelt)
'and' acts as a link.
(Other definitions for pelt that I've seen before include "Run fast - hide - pepper" , "Pour; hide" , "fall heavily" , "Skin, hide" , "Animal skin with hair still on it" .)