9a Strawberry, raspberry, gooseberry, currant, - general term for one of the types of food grown, harvested or purchased at a pick-your-own farm [5]
21a Queen of - , of nickname of the detective writer, Agatha Christie [5]
40a Historically traded on the Silk Road any of various plant - or vegetable-based ingredients - chilli, cinnamon, cloves, coriander or cumin to name a few [5]
30d Fabric used for dresses, scrunchies and patchwork or an area for croquet [4]