OK, I'm really struggling with this months Generalist. Thanks to JimJools for helping me so far.
Across:
8. San or an Aussie outback traveller (7)
??????N
12. In whist, a call for trumps (5)
????R
14. Spenser's result (5)
????W
18. One of the small forts built at regular distances along a Roman wall (4-6)
?I???A???E
31. Opinionated in Oise (7)
??T????
33. In law, strictly comparable (2,3,5)
O?R?L?????
35. A long whip or a venomous relation of the cobra (5,5)
?L???S????
37. French toast (1,5,5)
A?N???????E
40. Lisbon's river (5)
T?B??
43. Most obtrusive or vulgarly showy (7)
C?S????