Crossword Genius

Service is nevertheless no good (8)

Ross

I believe the answer is:

evensong

Here is my best explanation:

'service' is the definition.
(thesaurus)

'nevertheless no good' is the wordplay.
'nevertheless' becomes 'evenso' ('even so' can be a synonym of 'nevertheless').
'no' becomes 'n' (common abbreviation).
'good' becomes 'g' (abbreviation).
'evenso'+'n'+'g'='EVENSONG'

'is' is the link.

This clue was last seen in The Telegraph