Note I’d backed with some hesitation brings boredom (6)
I believe the answer is:
tedium
'boredom' is the definition.
('tedium' can be a synonym of 'boredom')
'note i'd backed with some hesitation' is the wordplay.
'note' becomes 'te' (**).
'backed' says the letters should be written backwards.
'with' says to put letters next to each other.
'some hesitation' becomes 'um'.
'id' written backwards gives 'di'.
'te'+'di'+'um'='TEDIUM'
'brings' acts as a link.
(Other definitions for tedium that I've seen before include "State of being bored" , "Boredom, tiresomeness" , "Routine" , "Banality" , "boring" .)