New remit in damage and harm (9)
I believe the answer is:
detriment
'harm' is the definition.
(I know that detriment is a type of harm)
'new remit in damage' is the wordplay.
'new' indicates anagramming the letters.
'in' is an insertion indicator.
'damage' becomes 'dent' (dent is a kind of damage).
'remit' is an anagram of 'etrim'.
'etrim' placed inside 'dent' is 'DETRIMENT'.
'and' acts as a link.
(Other definitions for detriment that I've seen before include "Possible loss" , "hurt" , "Harm, damage" , "State of being harmed or damaged" , "Damage, loss" .)