Clues are things to do with the four seasons
SPRING. ... No. 1. Sounds like a blackbird swore (6). No. 2. Fresh arrive but sounds like they go away. (3/6). No4. A ruler or chess piece exists (5/4). No. 5. Add 2 consecutive letters to a weaving apparatus (6)
SUMMER. ...No. 7. Do forward rolls. (4/5).
AUTUMN..... No. 13. Hanker after in a round juicy fruit (8)
WINTER.... no. 16. Took a trip by air! (3). No.19. Increase rapidly in size and argues (8/6). No.20. Add a letter to a squamate reptile +an extra 26th (8)
Only have 2 I'm not sure of now. To do with spring .... sounds like a blackbird swore (6)
To do with autumn. ... hanker after in a round juicy fruit (8)