Choose not to take part in work with solicitor (3,3)
I believe the answer is:
opt out
'choose not to take part' is the definition.
(I've seen this before)
'work with solicitor' is the wordplay.
'work' becomes 'op' (abbreviation for opus).
'with' says to put letters next to each other.
'solicitor' becomes 'tout' (I've seen this before).
'op'+'tout'='OPT OUT'
'in' is the link.
(Other definitions for opt out that I've seen before include "Choose not to participate" , "Choose not to do something" , "Decide to withdraw" , "'Choose not to take part (3,3)'" , "Choose to be excluded" .)