Notice ballot includes accountant and lawyer (8)
I believe the answer is:
advocate
'lawyer' is the definition.
(I've seen this before)
'notice ballot includes accountant' is the wordplay.
'notice' becomes 'ad'.
'ballot' becomes 'vote' ('vote' can be a synonym of 'ballot').
'includes' is an insertion indicator.
'accountant' becomes 'ca' (abbreviation for chartered accountant).
'vote' going around 'ca' is 'vocate'.
'ad'+'vocate'='ADVOCATE'
'and' is the link.
(Other definitions for advocate that I've seen before include "Argue for" , "Person who pleads on behalf of another, like barrister" , "Defender" , "Person who pleads for a cause or idea" , "Promote" .)