Some Scouse git's evidently up for a scrap (7)
I believe the answer is:
vestige
'a scrap' is the definition.
(thesaurus)
'some scouse git's evidently up' is the wordplay.
'some' indicates the answer is hidden within the clue (some of the parts of the word are used).
'up' says the letters should be written backwards (in down clue: letters go upwards).
'egitsev' can be found hidden inside 'scouse gits evidently'.
'egitsev' reversed gives 'VESTIGE'.
'for' acts as a link.
(Other definitions for vestige that I've seen before include "Residual trace" , "(Last) trace" , "A sign" , "Trace, remnant" , "Small remaining bit of what once was" .)