Relax in settee, as ever (4)
I believe the answer is:
ease
'relax' is the definition.
(I've seen this before)
'in settee as ever' is the wordplay.
'in' indicates the answer is hidden within the clue.
'EASE' is hidden within 'settee as ever'.
(Other definitions for ease that I've seen before include "Leisure, comfort" , "Affluence" , "Absence of hardship" , "Allay" , "Absence of difficulty" .)