Thank you Trevor, had been scratching my head as to how 'DAN' could mean rubbish, hadn't thought of it as an anagram.
I actually found this quite a misleading clue, and - before I'd got any of the interlinking answers - at first entered 'SCRAP':
S = Bearing
CRAP = Rubbish
SCRAP = Litter
But of course that was wrong!