Dark grey rain-bearing cloud (6)
I believe the answer is:
nimbus
(Other definitions for nimbus that I've seen before include "Dark, rain-bearing cloud" , "Ouse/Trent estuary" , "Type of rain cloud" , "it could bring rain" , "Bums in (anag)" .)
I believe the answer is:
nimbus
(Other definitions for nimbus that I've seen before include "Dark, rain-bearing cloud" , "Ouse/Trent estuary" , "Type of rain cloud" , "it could bring rain" , "Bums in (anag)" .)