Row in the Treasury (4)
I believe the answer is:
bank
I believe this is a double definition.
'row' is the first definition.
(thesaurus)
'treasury' is the second definition.
(thesaurus)
'in the' is the link.
(Other definitions for bank that I've seen before include "Sloping land" , "Edge (of river) - tier (of oars)" , "Financial establishment" , "Reserve" , "deposit" .)