Solicitor going after second beer (5)
I believe the answer is:
stout
'beer' is the definition.
(type of beer)
'solicitor going after second' is the wordplay.
'solicitor' becomes 'tout' (someone who solicits business).
'going after' means one lot of letters go next to another.
'second' becomes 's' (common abbreviation).
'tout' put after 's' is 'STOUT'.
(Other definitions for stout that I've seen before include "Rather fat; determined" , "Overweight; porter" , "tipple" , "drinks?" , "Dark ale" .)