Person shunned in French city endlessly, a husband (6)
I believe the answer is:
pariah
'person shunned' is the definition.
(I've seen this before)
'french city endlessly a husband' is the wordplay.
'french city' becomes 'paris' (capital of France).
'endlessly' means to remove the last letter.
'husband' becomes 'h' (abbreviation).
'paris' with its last letter removed is 'pari'.
'pari'+'a'+'h'='PARIAH'
'in' acts as a link.
(Other definitions for pariah that I've seen before include "Outcast (state)" , "someone socially unacceptable" , "One is rejected by society" , "Social outcast" , "Person despised and avoided" .)