Sue's upset after another woman shows neglect (6)
I believe the answer is:
disuse
'neglect' is the definition.
(both can mean a state of disrepair)
'sue's upset after another woman' is the wordplay.
'upset' is an anagram indicator.
'after' means one lot of letters go next to another.
'another woman' becomes 'di' (short for Diana. I am not sure about the 'another' bit.).
'sues' is an anagram of 'suse'.
'suse' after 'di' is 'DISUSE'.
'shows' is the link.
Can you help me to learn more?
(Other definitions for disuse that I've seen before include "Neglect; abandonment" , "State of not being employed" , "Issued (anag)" , "Fall into this state to be unemplyed? (6)." , "Neglect; desuetude" .)