Antisocial lout set fire to boat whose interior's about to turn black (9)

I haven't cracked this one yet — but the brilliant team at Times for the Times have:

LIT (set fire to), TUG (boat) containing [whose interior’s] RE (about) reversed [to turn] + B (black). I’m a bit dubious about ‘lout’ in the definition. Thanks to Deezzaa for reminding me of the alternative nomenclature ‘litter lout’ which had somehow slipped my mind.