I'll swap you the 11 letter name for help with 10 A.
Snorting grams, debauched guy on date was a wrong 'in.(6)
Roue, debauched guy, add G for grams, Rogue, add D, date. This gives Rogued, but then thematically...
7. Look at the title, setter! Put him under A and you'll have a treet.