Last 2 please if anyone can help:
17a Area of trees west of Burton-on-trent (8,6) N?S?W?O? FOREST (I think all the letters are correct)
6d The 600-700 year old tree in 17a (7,3)
S?I?C?R OAK
Thanks both of you - considered both but the down clue giving the "S" is from CharleS Mingus (clue being "us bassist who formed his jazz workshop in 1955")