Not even caring, I steal with abandon (9)
I believe the answer is:
larcenist
'not even caring i steal with abandon' is the definition.
I can't tell whether this defines the answer.
'even caring i steal with abandon' is the wordplay.
'even' indicates alternate letters (letters in even-numbered positions are used).
'with abandon' indicates anagramming the letters.
'caring'+'i'='caringi'
The alternating letters of 'caringi' are 'crni'.
'crni'+'steal'='crnisteal'
'crnisteal' anagrammed gives 'LARCENIST'.
Can you help me to learn more?
(Other definitions for larcenist that I've seen before include "nicker" , "Thief" , "Dishonest person" , "One steals clarinets, oddly" , "One takes" .)