Tablet provides sporadic pain lull (4)

I believe the answer is:

pill

I'm a little stuck... Click here to teach me more about this clue!

'tablet' is the definition.
(I know that tablet can be written as pill)

I can't explain the rest of the clue.

(Other definitions for pill that I've seen before include "may be the cure" , "Medication" , "Medicinal pellet" , "Medical tablet" , "Form of medicine" .)

I've seen this clue in The Irish Times.

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