Accentuated or strained (8)
I believe the answer is:
stressed
I believe this is a double definition.
'accentuated' is the first definition.
('stress' can be a synonym of 'accentuate')
'strained' is the second definition.
('stress' can be a synonym of 'strain')
(Other definitions for stressed that I've seen before include "Emphasized or strained" , "Feeling tension" , "Under great strain" , "under force" , "Flustery" .)