Goodwill displayed by woman without sex appeal (5)
I believe the answer is:
amity
'goodwill' is the definition.
(thesaurus)
'woman without sex appeal' is the wordplay.
'woman' becomes 'amy' (**).
'without' is an insertion indicator ('without' can be similar in meaning to 'outside').
'sex appeal' becomes 'it'.
'amy' going around 'it' is 'AMITY'.
'displayed by' is the link.
(Other definitions for amity that I've seen before include "warmth" , "Cordial friendship" , "Friendship - goodwill" , "Friendliness" , "Friendly feeling, fraternity" .)