Kind of justice or license
I believe the answer is:
poetic
I believe this clue is a double definition.
'kind of justice' is the first definition.
(I've seen this in another clue)
'license' is the second definition.
(poetic license is a kind of license)
(Other definitions for poetic that I've seen before include "rhythmical" , "Concerning metrical writing" , "like Byron's" , "lines?" , "Ice pot (anag.)" .)