Appeal is integral to rebel's assaults countywide (6)
I believe the answer is:
beauty
'appeal' is the definition.
The definition and answer can be both human attributes as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'is integral to rebel's assaults countywide' is the wordplay.
I cannot really see how this works, but
'is' could be 'be' and 'be' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for beauty that I've seen before include "Attractive quality" , "Excellent specimen" , "Quality found in the eye of the beholder?" , "it delights the senses" , "See 12" .)