Cite tax due - amazing precision (10)
I believe the answer is:
exactitude
'precision' is the definition.
(thesaurus)
'cite tax due amazing' is the wordplay.
'amazing' indicates an anagram.
'cite'+'tax'+'due'='citetaxdue'
'citetaxdue' anagrammed gives 'EXACTITUDE'.
(Other definitions for exactitude that I've seen before include "Rigour" , "Attention to detail" , "Precision" .)