Oops my mistake - Franchises does fit (idiot spelt mighty wrong, perhaps I should go back to bed again, only got up at 5.30am ~ possibly still half asleep.
Hope you all have a lovely weekend. very cold but dry here.
The clue to 11a was/is
11 (and 14/17/24a & 6d) Proverb demonstrating that big things have to start from small things. (6,4,4,6,6,4) Mighty Oaks from little acorns grow.