Really big job to dispense justice three ways (5)
I believe the answer is:
obese
'really big' is the definition.
(I've seen this in another clue)
'job to dispense justice three ways' is the wordplay.
I cannot quite see how this works, but
'ways' could be 'es' (east and south - two directions) and 'es' is present in the answer.
The remaining letters 'obe' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for obese that I've seen before include "Significantly overweight" , "getting well-upholstered" , "Enormous" , "Stout" , "having generous corporation" .)