Skilled worker from Stuttgart is a nurseryman (7)
I believe the answer is:
artisan
'skilled worker' is the definition.
(artisan is a kind of skilled worker)
'from stuttgart is a nurseryman' is the wordplay.
'from' indicates the answer is hidden within the clue.
'ARTISAN' can be found hidden inside 'stuttgart is a nurseryman'.
(Other definitions for artisan that I've seen before include "Mechanic" , "Technician" , "Journeyman" , "Sinatra (anag) -- skilled manual worker" , "Skilled workman" .)