A London orchestra - thus German too? (4)
I believe the answer is:
also
'too?' is the definition.
('also' can be a synonym of 'too')
'a london orchestra' is the wordplay.
'london orchestra' becomes 'LSO' (london symphony orchestra).
'a'+'lso'='ALSO'
'thus german' is the link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for also that I've seen before include "'Besides, moreover (4)'" , "Likewise" , "on top" , "To boot" , "As well, in addition" .)