Still can't see 4d Dickens character, strong man securing power with money (7,5)
S _ R _ S _ N _ R _ Z _ (7,5) Looks like second word is crazy
23a Spotted motorway leading to Yorkshire town (6) M _ T _ _ _
24a Italian novelist in the city centre of Bologna 3 _ _ O
Is answer to 27 a Champion eight reportedly unhappy about capsizing 8 CRUSADER?
This fits but can't see why.
Shaneystar2 answered the Dickens character in your previous post.
Strong man = Samson, p for power inside = Sampson. Brass = money.
27 Cru sounds like crew (eight), sad = unhappy, er = about (re) capsizing.