To some extent sweetheart is a natural craftsperson (7)
I believe the answer is:
artisan
'craftsperson' is the definition.
(I've seen this in another clue)
'to some extent sweetheart is a natural' is the wordplay.
'to some extent' indicates a hidden word (I've seen 'extent of' mean this (I've seen this in other clues)).
'ARTISAN' can be found hidden inside 'sweetheart is a natural'.
(Other definitions for artisan that I've seen before include "Tsarina (anag.)" , "Skilled worker at craft or trade" , "Skilled tradesman" , "Crafty sort" , "one in command of craft?" .)