Is this where bankers are hiding cream cake? (6)
I believe the answer is:
eclair
'cream cake?' is the definition.
(I've seen this before)
I can't explain the remainder of the clue.
(Other definitions for eclair that I've seen before include "Lacier type of confection" , "Food" , "A long thin cake with chocolate covering" , "Comedienne" , "Long affair with pastry, chocolate and cream?" .)