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1 National emblem of 16 Across (8) 2 The _______ rural radio drama set in fictional Ambridge (7) 3 The House at ____ Corner; a book by AA Milne (4) 5 Ladies in ________; film directed by Charles Dance starring Judi Dench and Maggie Smith (8) 6 English painter in the Pre-Raphaelite style who created The Lady of Shalott (10) 7 Great Barrier ____; biggest single structure composed of living organisms on Earth (4) 9 Actress who starred as Cathy in William Wyler’s 1939 film version of Wuthering Heights (6) 10 Reading Without _____; 1857 educational book for children by Favell Lee Mortimer (5) 11 In hematology, the common name for an erythrocyte (3,5,4) 12 Largest modern constellation (5) 13 Moon orbiting the seventh planet (7) 20 Element with an atomic number believed to be unlucky by some (9) 21 Bird with a yellow breast; a common or regular visitor to garden feeders (4,3) 25 Mammals known collectively as colonies, kindles, husks or trips (7) 26 Cathedral city often described as England’s smallest (5) 27 Former German air force (9) 29 Ruminant native to Britain (3,4) 32 A horsewoman, generally skilled (12) 33 Player’s turn at batting in cricket (7) 34 Word prefixed to a type of flour used to make biscuits and pizza dough (5) 37 The ______, ____; literary and arts journal with contributors that included Max Beerbohm and Edmund Gosse and Aubrey Beardsley as art editor (6,4) 41 Breton _______; traditional French buckwheat crêpe eaten with egg, spinach or Gruyère cheese (7) 42 Branch of mathematics concerned with the operations of calculus (8) 43 Garment forming half of a twinset (8) 47 Japanese Volcano Island, site of a major battle of the Pacific War (3,4) 48 Spanish word for a brook that fills seasonally after sufficient rainfall (6) 49 Co-host of British TV series Countrywise who completed the Atlantic Rowing Race with James Cracknell in 2005-06 (5) 51 _ _ _ _ _Owl; assistant adult leader of a pack of Brownie Guides (informal) (5) 54 _ _ _ _-fleur; French for cauliflower (4) 55 Indian state, site of a mausoleum said to have taken around 22,000 people to build with the help of 1,000 elephants (4)