Fao - The Km Players
Here are today's shaded clues for you -
21a Colour of the squares representing science and nature questions in Trivial Pursuit [5]
35a Item associated with Hay-On-Wye and/or collected by a bibliophile etc [4]
54a Fibre or textile used to make Queen's Counsel gowns [4]
55d Group of artists or writers sharing a common style ; or a collective noun for a group of whales or dolphins [6]