Used bottles to spite me, somehow (7)
I believe the answer is:
empties
'used bottles' is the definition.
The answer and definition can be both man-made objects as well as being plural nouns.
Maybe there's a link between them I don't understand?
'spite me somehow' is the wordplay.
'somehow' indicates anagramming the letters.
'spite'+'me'='spiteme'
'spiteme' with letters rearranged gives 'EMPTIES'.
'to' is the link.
Can you help me to learn more?
(Other definitions for empties that I've seen before include "they've nothing to offer" , "Beer bottles after contents have been imbibed" , "Spite me with drained bottles" , "Returned bottles" , "drains" .)