An aspect of pronunciation bringing trouble (6)
I believe the answer is:
stress
I believe this is a double definition.
'an aspect of pronunciation' is the first definition.
'trouble' is the second definition.
(thesaurus)
'bringing' acts as a link.
(Other definitions for stress that I've seen before include "why off work?" , "'Strain, tension (6)'" , "Pressure or strain" , "Particular emphasis" , "Draw attention to" .)