Some light shone about the cool and damp (5)
I believe the answer is:
rainy
'damp' is the definition.
(thesaurus)
'some light shone about the cool' is the wordplay.
I cannot quite understand how this works, but
'some' could be 'a' and 'a' is located in the answer.
'cool' could be 'in' ('in' can mean fashionable or cool) and 'in' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
'and' is the link.
Can you help me to learn more?
(Other definitions for rainy that I've seen before include "The day one saves for" , "Save your money for this damp day" , "Wet, showery" , "Pluvial" , "Drizzly" .)