Debris, littered...
Litter.
litter
Litter is a six letter word for scattered rubbish.
litter
Debris.
Rubbish
The word you get by rearranging the letters in "BRIDES," which fits the clue of "scattered rubbish or ruins," is " debris."
The answer to the clue "Scattered rubbish" with the rearrangement of the letters in "brides" is "bidders." The letters can be rearranged to form this word, which fits the clue.
derbis
Litter
Jkol
The answer is debris when brides is rearranged.