Smartphone program starting to really tempt novice (10)
I believe the answer is:
apprentice
'novice' is the definition.
(apprentice is a kind of novice)
'smartphone program starting to really tempt' is the wordplay.
'smartphone program' becomes 'app' (apps on your phone).
'starting to' suggests taking the first letters.
'tempt' becomes 'entice' (synonyms).
The first letter of 'really' is 'r'.
'app'+'r'+'entice'='APPRENTICE'
(Other definitions for apprentice that I've seen before include "student" , "Trainee" , "Novice" , "Learner" , "new worker" .)