Drugs reportedly provide relief (4)
I believe the answer is:
ease
'relief' is the definition.
(I've seen this before)
'drugs reportedly' is the wordplay.
'drugs' becomes 'es' (E is a term for an ecstasy pill).
'reportedly' shows a homophone (sound like).
'es' is a homophone of 'EASE'.
'provide' acts as a link.
(Other definitions for ease that I've seen before include "Allay" , "Comfort and repose" , "Lessen intensity" , "Leisure, comfort" , "Assuage" .)