Created calm (8)
I believe the answer is:
composed
This clue is a double definition.
'created' is the first definition.
(composing is a kind of creating)
'calm' is the second definition.
('composed' can be similar in meaning to 'calm')
(Other definitions for composed that I've seen before include "Wrote music" , "Calm and collected" , "Serenely self-possessed" , "Made a score" , "Still - contrived" .)