Being placed in a poor side produces an argument (7)
I believe the answer is:
dispute
'an argument' is the definition.
(I've seen this before)
'being placed in a poor side' is the wordplay.
'being placed' becomes 'put' (I've seen this in other clues).
'in' indicates putting letters inside.
'a poor' indicates an anagram.
'side' is an anagram of 'dise'.
'put' put into 'dise' is 'DISPUTE'.
'produces' is the link.
(Other definitions for dispute that I've seen before include "Argue about (something)" , "Quarrel over rights" , "Row" , "Altercate" , "Argument, contention" .)