Rich, like the countryside, often? (7)
I believe the answer is:
rolling
I believe this is a double definition.
'rich' is the first definition.
(rolling in it)
'like the countryside often?' is the second definition.
(as in 'rolling countryside')
(Other definitions for rolling that I've seen before include "Type of stock" , "Steady and continuous" , "-- Stock; -- pin" , "extremely rich" , "Going round - a type of mill" .)