Promote growth of civilisation (7)
I believe the answer is:
culture
I believe this clue is a double definition.
'promote growth' is the first definition.
(the job of eg a chemist)
'civilisation' is the second definition.
'of' acts as a link.
(Other definitions for culture that I've seen before include "The arts; grown bacteria" , "Customs of a group" , "Disorientation caused by a complete change environment" , "Grow (eg, bacteria, tissue cells) in artificial media" , "Polish" .)