Time away from work is dandy! (4)
I believe the answer is:
toff
'is dandy' is the definition.
(I've seen this before)
'time away from work' is the wordplay.
'time' becomes 't' (abbreviation).
'away from work' becomes 'off' (I've seen this in another clue).
't'+'off'='TOFF'
(Other definitions for toff that I've seen before include "Posh chap" , "Rich or upper-class person" , "Posh geezer" , "Posh type" , "One could be stuck up" .)