Servant has quarrel (8)
I believe the answer is:
domestic
This clue is a double definition.
'servant' is the first definition.
(domestic is a kind of servant)
'quarrel' is the second definition.
(I've seen this before)
'has' acts as a link.
(Other definitions for domestic that I've seen before include "hired help" , "Internal; servant" , "Relating to home or private affairs" , "Daily" , "Concerning home affairs" .)