Down-and-out, mostly rough-edged bachelor returned (6)
I believe the answer is:
beggar
'down-and-out' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for beggar that I've seen before include "Reduce (someone) to poverty" , "He can't be a chooser, proverbially" , "I need bread" , "One lives by asking for money or food" , "Mendicant or cadger" .)