struggling a bit with this one :
2 dn - Attack imaginary enemies (4,2,9)
40 dn - Extremely bad or unpleasant (9) ??E???B??
23 ac - Fanciful notion; self-pride (7) ????E?T
35 ac - Plant with tall spikes of yellow flowers (9)
6 dn Something providing a steady cash flow(4,3)