Appreciates ill wind and a bit of overshadowing (7,7)
I believe the answer is:
partial eclipse
'a bit of overshadowing' is the definition.
I can't tell whether this definition defines the answer.
'appreciates ill wind' is the wordplay.
'wind' indicates an anagram.
'appreciates'+'ill'='appreciatesill'
'appreciatesill' anagrammed gives 'PARTIAL ECLIPSE'.
'and' acts as a link.
Can you help me to learn more?
(Other definitions for partial eclipse that I've seen before include "Heavenly event" , "that limits star's appearance" , "blockout without full effect" , "perhaps, of ominous event?" , "Astronomical event" .)