Daily aims to develop personal appeal (8)
I believe the answer is:
charisma
'personal appeal' is the definition.
('charisma' can be a synonym of 'personal appeal')
'daily aims to develop' is the wordplay.
'daily' becomes 'char' (I've seen this before).
'to develop' indicates an anagram.
'aims' is an anagram of 'isma'.
'char'+'isma'='CHARISMA'
(Other definitions for charisma that I've seen before include "Impressive gift" , "Glamour" , "Rich as ma, having personal magentism" , "Compelling charm" , "special personal quality" .)