Cloudiness over outskirts of Palma town (7)
I believe the answer is:
opacity
'cloudiness' is the definition.
(thesaurus)
'over outskirts of palma town' is the wordplay.
'over' becomes 'o' (cricket abbreviation).
'outskirts of' means to remove the middle letters.
'town' becomes 'city' (I've seen this in other clues).
'palma' with its centre removed is 'pa'.
'o'+'pa'+'city'='OPACITY'
(Other definitions for opacity that I've seen before include "Non-transparency" , "Not allowing passage through" , "Unclear quality" , "The quality of being impervious to light" , "Lack of transparency" .)