Soon begrudge going into work (9)
I believe the answer is:
presently
'soon' is the definition.
(synonyms)
'begrudge going into work' is the wordplay.
'begrudge' becomes 'resent' (synonyms).
'going into' is an insertion indicator.
'work' becomes 'ply' (I've seen this in other clues).
'resent' placed within 'ply' is 'PRESENTLY'.
(Other definitions for presently that I've seen before include "Soon, in a little while" , "In the near future" , "At the moment" , "Before long" .)