Striking entails getting beaten up (7)
I believe the answer is:
salient
'striking' is the definition.
('salient' can be a synonym of 'striking')
'entails getting beaten up' is the wordplay.
'getting beaten up' is an anagram indicator.
'entails' is an anagram of 'SALIENT'.
(Other definitions for salient that I've seen before include "Noteworthy" , "obvious" , "Outstanding - it's lean (anag)" , "Entails (anag) - most important" , "Entails being most noticeable" .)