Guys with no sex appeal turning intimate (7)
I believe the answer is:
mention
'intimate' is the definition.
(thesaurus)
'guys with no sex appeal turning' is the wordplay.
'guys' becomes 'men' (guy can mean a man).
'with' is a charade indicator (letters next to each other).
'sex appeal' becomes 'it'.
'turning' is a reversal indicator.
'no'+'it'='noit'
'noit' back-to-front is 'tion'.
'men'+'tion'='MENTION'
(Other definitions for mention that I've seen before include "Allude to" , "Cite; quote" , "Remark" , "Speak of - refer to" , "Briefly refer to (something)" .)