Your ills may turn out to be imaginary (8)
I believe the answer is:
illusory
'be imaginary' is the definition.
(thesaurus)
'your ills may turn out' is the wordplay.
'your ills' can be anagrammed to 'ILLUSORY'.
But, I am not sure how this is indicated.
'to' is the link.
Can you help me to learn more?
(Other definitions for illusory that I've seen before include "Deceptive" , "false" , "in the imagination" , "dreamed up" , "Fanciful, imaginary (8)" .)