Stamping out (8)
I believe the answer is:
striking
This clue is a double definition.
'stamping' is the first definition.
(thesaurus)
'out' is the second definition.
(I've seen this before)
(Other definitions for striking that I've seen before include "Remarkable; hitting" , "Conspicuous" , "Impressive; refusing to work" , "Conspicuously impressive" , "not working" .)