Win back pounds seized in a crime after resolution (7)
I believe the answer is:
reclaim
'win back' is the definition.
(thesaurus)
'pounds seized in a crime after resolution' is the wordplay.
'pounds' becomes 'l' (L can represent the monetary pound).
'seized in' means one lot of letters goes inside another.
'after' is a charade indicator (letters next to each other).
'resolution' indicates anagramming the letters.
'a'+'crime'='acrime'
'acrime' is an anagram of 'recaim'.
'l' placed into 'recaim' is 'RECLAIM'.
(Other definitions for reclaim that I've seen before include "I'm Clare (anag)" , "From sea, rescue" , "Bring under cultivation" , "Retrieve, recover" , "Get back (eg from the sea)" .)