Black drops from a rain cloud giving bad feeling (6)
I believe the answer is:
animus
'bad feeling' is the definition.
(I've seen this before)
'black drops from a rain cloud' is the wordplay.
I cannot really see how this works, but
'a' could be 'an' and 'an' is found in the answer.
This explanation may well be incorrect...
'giving' is the link.
Can you help me to learn more?
(Other definitions for animus that I've seen before include "Feeling of strong dislike" , "Hostile spirit in speech or action" , "Hostility shown in speech or action" , "Hostility, bad feeling toward" , "A feeling of ill will or hostility" .)