Each solicitor will have to go for a meal (3,3)
I believe the answer is:
eat out
'to go for a meal' is the definition.
(as opposed to eating in)
'each solicitor' is the wordplay.
'each' becomes 'ea' (abbreviation).
'solicitor' becomes 'tout' (someone who solicits business).
'ea'+'tout'='EAT OUT'
'will have' acts as a link.
(Other definitions for eat out that I've seen before include "Visit a restaurant" , "'Don't dine at home (3,3)'" , "Lunch in pub?" , "Etch" , "Have it in cafe" .)