Wrong quarantining people for plague (7)
I believe the answer is:
torment
'for plague' is the definition.
(I've seen this in another clue)
'wrong quarantining people' is the wordplay.
'wrong' becomes 'tort' (a civil wrong in law).
'quarantining' indicates putting letters inside (quarantine can mean to contain).
'people' becomes 'men' (men are people).
'tort' enclosing 'men' is 'TORMENT'.
(Other definitions for torment that I've seen before include "Severe pain" , "Torture" , "Punish" , "Pester annoyingly" , "Great suffering" .)