Considering retribution (9)
I believe the answer is:
reckoning
This clue is a double definition.
'considering' is the first definition.
('reckon' can be a synonym of 'consider')
'retribution' is the second definition.
(thesaurus)
(Other definitions for reckoning that I've seen before include "estimating?" , "Count" , "Settling of accounts" , "Counting, calculating" .)