Altercation in bank? (3)
I believe the answer is:
row
I believe this clue is a double definition.
'altercation' is the first definition.
(I've seen this before)
'bank?' is the second definition.
(thesaurus)
'in' acts as a link.
(Other definitions for row that I've seen before include "Series" , "Fall out" , "File" , "Barney - rank" , "Altercation" .)