Last two avoiding service still (4,2)
I believe the answer is:
even so
'still' is the definition.
(both can mean 'nonetheless')
I can't explain the remainder of the clue.
(Other definitions for even so that I've seen before include "yet" , "however" , "Notwithstanding" , "'Despite, still (4,2)'" , "Just the same, though that may be the case" .)