Persistent state of anxiety (8)

I believe the answer is:

neurosis

(Other definitions for neurosis that I've seen before include "Resinous sort of mental disorder" , "Mild condition such as obsessive behaviour" , "Resinous (anag) -- unspecific personality disturbance" , "Trouble in mind" , "Mild mental disorder - resinous (anag)" .)

I've seen this clue in The Times.

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