Lawyer with German's money getting in bother (6)
I believe the answer is:
dammit
'bother' is the definition.
(both are expressions of irritation)
'lawyer with german's money getting in' is the wordplay.
'lawyer' becomes 'D.A.' (abbreviation for District Attorney).
'with german' becomes 'mit' ('with' in German).
'money' becomes 'm' (abbreviation in economics).
'getting in' means one lot of letters goes inside another.
'mit' enclosing 'm' is 'mmit'.
'da'+'mmit'='DAMMIT'
(Other definitions for dammit that I've seen before include "Mild oath" , "mild expletive" , "Expression of frustration" .)