SOLUTION TO QUICK PUZZLE NO. 9,521:

Across: 4 Mutual; 7 Euphoria; 8 Ocelot; 10 Shade; 13 Iran; 14 Hula; 15 Enid; 16 Fin; 17 Rags; 19 Eros; 21 Encounter; 23 Vast; 24 Less; 26 Rot; 27 Unit; 29 Toss; 32 Main; 33 Asset; 34 Futile; 35 Cocktail; 36 Gentle. Down: 1 Leash; 2 Appal; 3 Dove; 4 Maori; 5 Then; 6 Adonis; 9 Cadets; 11 Hug; 12 Darns; 13 Insulin; 15 Ego; 16 For; 18 Actual; 20 Rests; 21 Eat; 22 Net; 23 Volume; 25 Use; 28 Niece; 30 Oscar; 31 Stale; 32 Mist; 33 Asks.