A great deal required for such a call at whist (9)
I believe the answer is:
abundance
I believe this is a double definition.
'a great deal' is the first definition.
(I've seen this before)
'such a call at whist' is the second definition.
(I've seen this before)
'required for' acts as a link.
(Other definitions for abundance that I've seen before include "Nine tricks" , "great deal" , "Plethora" , "'Plenty, loads (9)'" , "Danube can flow with plenty" .)