Excellent penalty (4)
I believe the answer is:
fine
I believe this clue is a double definition.
'excellent' is the first definition.
('fine' can be a synonym of 'excellent')
'penalty' is the second definition.
(I've seen this before)
(Other definitions for fine that I've seen before include "First-rate - punishment" , "A financial penalty - excellent" , "No special brandy" , "Very high quality money penalty" , "Excellent kind of monetary penalty" .)