Dizzy spell and attack of illness after a sudden change (9)
I believe the answer is:
turnabout
'sudden change' is the definition.
(thesaurus)
'dizzy spell and attack of illness after a' is the wordplay.
'dizzy spell' becomes 'turn' (synonyms. I am not sure about the 'dizzy' bit.).
'and' says to put letters next to each other.
'attack of illness' becomes 'bout' (as in a bout of flu).
'after' means one lot of letters go next to another.
'bout' put after 'a' is 'about'.
'turn'+'about' is 'TURNABOUT'.
Can you help me to learn more?
(Other definitions for turnabout that I've seen before include "That makes a change" , "Total change of policy" , "change of heart" , "complete change of policy" .)