Alfie's Special no.1

1....PRION is a rogue protein responsible for BSE.
13..ECHE is a Shakespearean variation of EKE, to stretch by means of expedients (inter alia).
34..ELINT is el(ectronic) int(elligence).
27..KIRI, a Chinese tree Paulownia tomentosa especially used for cabinet-making in Japan.
.....Not in Chambers (1998) but it appears in the CD-ROM version of the New Shorter Oxford.