One with craft capsizing in ocean as it rains (7)
I believe the answer is:
artisan
'one with craft' is the definition.
(someone trained in a craft)
'capsizing in ocean as it rains' is the wordplay.
'capsizing' is a reversal indicator.
'in' indicates the answer is hidden within the clue.
'nasitra' can be found hidden inside 'ocean as it rains'.
'nasitra' in reverse letter order is 'ARTISAN'.
(Other definitions for artisan that I've seen before include "Sinatra (anag) -- skilled manual worker" , "Handy worker" , "Skilled manual 17" , "Technician" , "Train as (anag) - craftsman" .)