Boredom displayed by some teen nuisance (5)
I believe the answer is:
ennui
'boredom' is the definition.
(I know that boredom can be written as ennui)
'some teen nuisance' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'ENNUI' is hidden in the letters of 'teen nuisance'.
'displayed by' is the link.
(Other definitions for ennui that I've seen before include "French boredom and lassitude" , "Boredom, listlessness" , "Feeling of dissatisfaction" , "Sense of tedium" , "Effect of boredom" .)