Negligent, not having transport round Spain (8)
I believe the answer is:
careless
'negligent' is the definition.
('careless' can be similar in meaning to 'negligent')
'not having transport round spain' is the wordplay.
'not having transport' becomes 'carless'.
'round' is an insertion indicator.
'spain' becomes 'e' (abbreviation for Espana).
'carless' going around 'e' is 'CARELESS'.
(Other definitions for careless that I've seen before include "Inattentive and negligent" , "Unconcerned, heedless" , "Inattentive to risk" , "Incautious" , "Thoughtless, remiss" .)