ACROSS
1 CANNABIN – not sure of wordplay beyond CA being “Bill brought back”
7 FLAW – double definition. A flaw can be a gust of wind.
10 (<=MALE) – an ancient warrior kingdom east of the Tigris River
11 VI(AB)LE
12 ARTIC-H(OK)E
13 T-HER-(<=FOE)
15 M-(<=AIDE) – something to do with computing?
16 KA(LOOK)I – a card game. KAI is the Maori word for “food”
18 ESC-ROLL – ESC is the “Escape” key on your keyboard, of course.
21 E-(c)LEMENT – Definition is He (helium)
23 SUSANNE – which along with Mia is an anagram of “amanuensis”
25 (<=NIT)-ED
27 RET-ABLE
29 OBSTETRIC – (totes crib)*
30 SE(ME)ME – SEME seems to have come up a lot recently in Crosswordland. In linguistics, a sememe is a basin unit of meaning.
31 Y-ORE
32 ODOR – hiddden in “TheODORe” – the American speller of ODOUR, which can ,ean “repute”.
33 BERG-A-(<=TOM)
DOWN
1 CENT – homophone of SCENT
2 A(L-THEA)A
3 NA(KED)N-ESS
4 A-C(RE)AGE
5 BE(TOKE)N
6 (<=IN)-COL – a Nicol prism is a crystal used for the polarization of light.
7 FAH-LORE – a sulphide of antimony and copper
8 ALKY(L)
9 WE(EVIL)ED
14 DOOR-N-BOOM – A doorn-boom is a South African acacia
15 (<=MAES)-TO-S.O. – it is useful to learn your musical terms when solving barred crosswords. MAESTOSO means “with majesty”
17 S-MATTER
19 STEERER – (eserter)*
20 CUTTING – double def.
22 VELCRO – (LuCk) in (over)*
24 NE(<=ME)B
26 A(B.E.)D
27 EVE(n)T – the common newt, more commonly seen as EFT in crosswords.
I also considered CANNABIS and AC reversed at first.