5- Full of bubbles (5)
11- Mischievously (8)
12 Fund for the cat? (5)
18- Ancient maker (6)
22- Equal shares (5&5)
28- Not sparcely (7)
35- Soaking Wet (8)
38- Charge the beak (4)
5) is fizzy;
11) is impishly;
12) is kitty;
18) I can't even guess at;
22) may be something ending with "divvy" or "split";
28) may be thickly (and please invite the puzzle composer to look up "sparSe");
35) is dripping; and
38) is bill.