Caterer gets involved in a domestic row (7)
I believe the answer is:
terrace
'a domestic row' is the definition.
(I've seen this before)
'caterer gets involved' is the wordplay.
'gets involved' indicates an anagram.
'caterer' anagrammed gives 'TERRACE'.
'in' is the link.
(Other definitions for terrace that I've seen before include "Stadium's standing area" , "Urban housing" , "Continuous row of houses" , "Sloping area in stadium" , "Stadium spectators' area" .)