6a- Quartet is definition- begins te
11a Tree is definition (thematic word is spin) lacquer (or most of the word) contains the rest of the wordplay. Tree begins with J
9d- Group of computer users is def. The vessel in the wordplay was Noah's.
32a Of a therapy is def. Ego in reverse is the self confidence part of the wordplay.
41a Boats is definition. French Canadian word begins with Bat.
Not sure if you want 28a or 29d
28a Pay the penalty for is def. Begins ab
29d Defect is the defintion (unusual defintion for the answer I thought). More familiar as a synonym for a break- begins with H