Guiltless or guileless (8)
I believe the answer is:
innocent
I believe this clue is a double definition.
'guiltless' is the first definition.
(I know that guiltless can be written as innocent)
'guileless' is the second definition.
(I've seen this before)
(Other definitions for innocent that I've seen before include "Name of 13 popes and one anti-pope" , "Irreproachable" , "Without blame or guilt" , "Pope" , "Naive or not guilty" .)