Girl executed in the bullring (8)
I believe the answer is:
veronica
'girl' is the definition.
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for veronica that I've seen before include "Plant also called speedwell -- I've no car (anag)" , "Plant with spikes of blue or purple" , "Lady" , "There's a strange vain core to this plant?" , "Blue / purple flowering plant" .)