I went off like a house on fire but have been stuck on these for ages, any help would be much appreciated.
15 Young horse without race gets eight, we're told, at sporty opening (5,4)
17 But doctor thrashed the designer (5,5)
32 Man of letters, a bright person, revealed stories of bravery (8,4)
57 Ask about Norm, the triskaidekaphobe's cat, at the 'vegetable hotel' (6)
77 Butler's mixed salad - due in Embankment Gardens - is memorable (8)
87 18 + 34 + 7 + 13 = RA (7)