Priest is suspect (6)
I believe the answer is:
divine
I believe this clue is a double definition.
'priest' is the first definition.
(thesaurus)
'is suspect' is the second definition.
(thesaurus)
(Other definitions for divine that I've seen before include "Apprehend" , "clergyman" , "Guess" , "Emanating from God" , "To do with deity" .)