I conspire to perfection (9)
I believe the answer is:
precision
'perfection' is the definition.
(thesaurus)
'i conspire' is the wordplay.
'i conspire' anagrams to 'PRECISION'.
But, I'm not sure how the anagram is indicated.
'to' is the link.
Can you help me to learn more?
(Other definitions for precision that I've seen before include "Meticulousness" , "Care" , "Exactness, sharpness" , "Accuracy, exactness" , "Exactitude" .)