Meagre edition about deadly sin (5)
I believe the answer is:
greed
'deadly sin' is the definition.
(I know that greed is a type of deadly sin)
'meagre edition about' is the wordplay.
'about' indicates the answer is hidden within the clue (the clue goes around or about the answer).
'GREED' can be found hidden inside 'meagre edition'.
(Other definitions for greed that I've seen before include "Circuit" , "Rapacity" , "Insatiability" , "Selfish desire" , "Avidity" .)