Still struggling with last few answers:
23A. Following a particular philosopher, Conservative as well (9).c---e-i--
27A. Fresh bit of language in notes? No.(7) --i-a--
22D. Socialist sets undermining a printing unit.(6) -----s
11A. Pasta restricted, in short supply (5) p-n-e Could it be penne?
18A. Inebriating litres downed by explosive female (5) h-a-y Could it be heady?
25A Presenter of sporting trophy jockey's listened to (5). Is this ryder or rider?