Attractiveness, appeal (5)
I believe the answer is:
charm
I believe this is a double definition.
'attractiveness' is the first definition.
(I know that charm is a type of attractiveness)
'appeal' is the second definition.
(I know that charm is a kind of appeal)
(Other definitions for charm that I've seen before include "Enchant" , "Win over" , "Delight; magical object" , "Bewitch or delight" , "Power of fascination" .)