Negligent, lacking transport round estate, ultimately (8)
I believe the answer is:
careless
'negligent' is the definition.
(similar in meaning)
'lacking transport round estate ultimately' is the wordplay.
I cannot quite understand how this works, but
'lacking' could be 'less' (I've seen this in another clue) and 'less' is located in the answer.
'transport' could be 'car' (car is a method of transport) and 'car' is found in the answer.
A single letter 'e' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for careless that I've seen before include "Inconsiderate" , "Negligent, unconcerned" , "Inattentive to risk" , "Not paying enough attention" , "Marked by lack of attention" .)