Dismal collection returned for pound (7)
I believe the answer is:
bombard
'pound' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe you can see a link between them that I can't see?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for bombard that I've seen before include "Attack with missiles" , "Organ stop" , "Batter heavily and persistently" , "Attack persistently" , "Pelt with missiles" .)