Hidden nuisances include boredom (5)

I believe the answer is:

ennui

'boredom' is the definition.
(I know that boredom can be written as ennui)

'hidden nuisances include' is the wordplay.
'include' indicates a hidden word.
'ENNUI' is hidden in the letters of 'hidden nuisances'.

(Other definitions for ennui that I've seen before include "Boredom, dullness" , "French boredom and lassitude" , "Listless feeling" , "Boredom in France" , "Weary feeling" .)

I've seen this clue in The Daily Express.

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