Quite — attractive (6)
I believe the answer is:
pretty
I believe this clue is a double definition.
'quite' is the first definition.
(synonyms)
'attractive' is the second definition.
(pretty can mean good-looking or attractive)
(Other definitions for pretty that I've seen before include "Nice to look at" , "sweet" , "Fairly - good-looking" , "Fair - fairly" , "Rather attractive" .)