Caterer breaking bank (7)
I believe the answer is:
terrace
'bank' is the definition.
(a bank of houses)
'caterer breaking' is the wordplay.
'breaking' is an anagram indicator.
'caterer' anagrammed gives 'TERRACE'.
(Other definitions for terrace that I've seen before include "Group of non-detached houses" , "Row of uniform houses" , "Flat area (on slope)" , "level raised" , "Veranda" .)