Sentence:  Anyway, this <WSD>clanger</WSD> sounds. We put out our smokes, shoulder our packs, put on our helmets. The drill was that you turned around and handed your rifle to the guy behind you who then attached it to your pack while you attached the rifle of the guy in front of you to his pack. 
Meaning of the word marked with <WSD> tags:  Something that clangs; an alarm bell ("also figuratively").