In Leipzig, no bleeding base! (7)
I believe the answer is:
ignoble
'base' is the definition.
('ignoble' can be similar in meaning to 'base')
'in leipzig no bleeding' is the wordplay.
'in' says the answer is hidden in the clue.
'IGNOBLE' can be found hidden inside 'leipzig no bleeding'.
(Other definitions for ignoble that I've seen before include "Debased in character or purpose" , "degenerate" , "Inferior" , "I belong to low sort" , "not in the top class" .)