Retribution seems in order (7)
I believe the answer is:
nemesis
'retribution' is the definition.
(spirit of retribution in Greek mythology)
'seems in order' is the wordplay.
'order' indicates anagramming the letters.
'seems'+'in'='seemsin'
'seemsin' with letters rearranged gives 'NEMESIS'.
(Other definitions for nemesis that I've seen before include "Goddess of retribution in Greek mythology" , "Bane" , "Something causing misery (or death) - Meissen (anag)" , "causes downfall" , "(Fate's) retribution" .)