Possible Clues:

• 'As this is to be found there at the laundry (2,3,4)'
• Where dirt comes out
• Where dirty clothes go
• Seems he was there
• Where he was, perhaps, where he was dealt with by 10 across
• If that is where he was, he might come clean afterwards
• That's where he was, perhaps, being dealt with by 17 down
• That's where he was in the hands of 10 across
• Where he was, was going to have to come clean
• As it's to be found there to be what one 9 down