Shut up and made oneself scarce (6)
I believe the answer is:
bolted
'shut' is the definition.
(thesaurus)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for bolted that I've seen before include "Ran away" , "Fled, having locked up?" , "Fastened door with sliding bar (6)" , "Absconded" .)