Hassle such importance (6)
I believe the answer is:
stress
This clue might be a double definition.
'hassle such' is the first definition.
The answer and definition can be both acts as well as being singular nouns.
Maybe there's a link between them I don't understand?
'importance' is the second definition.
(I know that stress is a type of accent)
Can you help me to learn more?
(Other definitions for stress that I've seen before include "Emphasis on anxiety?" , "Feeling of pressure" , "what causes tension" , "State mental or emotional strain" , "Particular emphasis" .)