Swell time away (4)
I believe the answer is:
toff
'swell' is the definition.
(wealthy or high-class person)
'time away' is the wordplay.
'time' becomes 't'.
'away' becomes 'off' ('off' can be a synonym of 'away'**).
't'+'off'='TOFF'
(Other definitions for toff that I've seen before include "An informal aristocrat" , "Dandy" , "Posh type" , "Person of the upper classes" , "Wealthy and well-dressed member of the upper classes" .)