3) Sounds like a smart animal (9)
22)Goes with old lace (8)
30) part of animals' face (7)
38)Lonely in vegetable patch (7)
48)Sophie or Roald with letters (6)
59)Hooter with light (8)
77)Heavenly river (9)
82)Animal's lenght (9)
85)Yoga posture (5)
38)Lonely in vegetable patch (7) ... PETUNIA (answered by Mamya in another post)
82)Animal's length (9) ... could also be GOOSEFOOT or KITESFOOT or COCKSFOOT (also answered in earlier post).
22)Goes with old lace (8) ... usually, ARSENIC goes with old lace, but isn't a plant and is only 7 letters; so that's a rubbish idea.
77)Heavenly river (9) ... SUNFLOWER.