Lay to rest uninteresting cases (5)

I believe the answer is:

inter

'lay to rest' is the definition.
(synonyms)

'uninteresting cases' is the wordplay.
'cases' says the answer is hidden in the clue.
'INTER' can be found hidden inside 'uninteresting'.

(Other definitions for inter that I've seen before include "get put down!" , "Milan football team" , "set underground" , "Place into grave, tomb" , "Inhume" .)

I've seen this clue in The Telegraph.

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