Clearness (8)
'clearness' is the definition.
(synonyms)
This is the entire clue.
(Other definitions for lucidity that I've seen before include "Clarity (of thought)" , "Brilliance - explicitness" , "Clarity of expression" , "Clearness" .)
'clearness' is the definition.
(I know that clearness can be written as clarity)
This is all the clue.
(Other definitions for clarity that I've seen before include "Clearness" , "Distinctness" , "Freedom from doubt or impurity" , "Precision" , "Transparent state" .)