Background or surroundings (7)
I believe the answer is:
setting
This clue is a double definition.
'background' is the first definition.
(I know that background can be written as setting)
'surroundings' is the second definition.
(setting is a kind of surroundings)
(Other definitions for setting that I've seen before include "Going down (of the sun)" , "Writing puzzles, perhaps" , "Gem''s mounting - stage scenery" , "Place where an event takes place" , "Surroundings; hardening" .)