22d) Spain's evasive about record in environmental science (7) E?????Y
23d) What's created from rotten greenery without hesitation? (6) ?????Y
25a) Penny-pinching busy neurosurgeon or not? (10) ???E?E???S
27a) Charm old chap in Paris street, all upset (7) E?A?O??
All help really appreciated
Thank you all for your informative answers> Can you advise me answer for 28 across, 7 letters O?T?O?N (Clue: Old-fashioned Open University divided by women) Is it Outworn?