7d Multi-generational novel where gold's discovered at the end?(3,7)
8d Grahame: at the end, Toad, travelling in posh car, getting porridge once?(6,4)
24a Nowadays, a new number to perform: Teeny-Weeny (4,6)
Many thanks in anticipation!
7d The Rainbow - https://en.wikipedia.org/wiki/The_Rainbow
8d Rolled oats - '(Graham)e' (end) + anag 'toad' (in) 'Rolls'
24a Anno Domini - 'a n(ew) no do (perform) mini (teeny-weeny)'