Nuances, implications (9)
I believe the answer is:
overtones
I believe this clue is a double definition.
'nuances' is the first definition.
(I've seen this before)
'implications' is the second definition.
(I've seen this before)
(Other definitions for overtones that I've seen before include "Subtle implications" , "added nuances" , "Upper partials" , "subtle innuendoes" .)