Business deficit, one showing huge figures (7)
I believe the answer is:
colossi
'huge figures' is the definition.
(I've seen this before)
'business deficit one' is the wordplay.
'business' becomes 'co' (short for company).
'deficit' becomes 'loss' (I've seen this before).
'one' becomes 'i' (Roman numeral).
'co'+'loss'+'i'='COLOSSI'
'showing' acts as a link.
(Other definitions for colossi that I've seen before include "Enormous statues" , "huge figures" , "powerful people" , "Huge statues" , "Powerful figures" .)